Med Math Review
A nurse is preparing a medication and calculates the dosage as 0.893 mL. Rounding this amount to the nearest hundredth, the nurse should administer how many mL?
0.89 mL
A nurse is preparing to administer calcitonin 100 units subcutaneous to a client. Available is calcitonin 200 units/ml. How many ml should the nurse administer?
100 units x 200 units/ml = 0.5 ml ANS: 0.5 ml
A nurse is preparing to administer lamivudine 150 mg PO every 12 hr. Available is lamivudine oral solution 10 mg/mL. How many mL should the nurse administer per dose?
15 mL
A nurse is preparing to administer nafcillin 375 mg IM to school-aged child. Available is nafillin powder for injection 2 g vial. The nurse reconstitutes the powder to yield a final concentration of nafcillin 250 mg/ mL. How many mL should the nurse administer?
1.5
A nurse is preparing albuterol 4 mg PO every 6 hr. Available is albuterol syrup 2 mg/5 mL. How many mL should the nurse administer per dose?
10 mL
A nurse is preparing the administer cephalexin 500 mg PO every 6 hr. Available is cephalexin suspension 250mg/5mL. How many mL should the nurse administer per dose?
10 mL
A nurse is preparing to administer haloperidol 3 mg IM for agitation. Available is haloperidol 5 mg/ml for injection. How many ml should the nurse administer?
3 mg x 5 mg/ml = 0.6 ml ANS: 3 ml
A nurse is preparing to administer levothyroxine 0.075 mg PO to a client. Available is levothyroxine 25 mcg tablets. How many tablets should the nurse administer?
3 tablets
A nurse is converting a toddler's weight from lb to kg. If the toddler weighs 17 lb 9 oz, what is the toddler's weight in kg? (Round to the nearest whole number.)
16 oz/lb x 9 oz = 0.5625 lb 17 lb + 0.5625 lb = 17.5625 lb 2.2 lb/kg x 17.5625 lb = 7.982954 kg ANS: 8 kg
A nurse is preparing to administer cephalexin 0.25 g PO every 6 hr. Available is cephalexin 500 mg tablets. How many tablets should the nurse administer per dose?
0.5 tablet
A nurse is preparing to administer famotidine 20 mg PO every 12 hr. Available is famotidine 40 mg tablets. How many tablets should the nurse administer per dose?
0.5 tablets
A nurse is preparing a medication and calculates the dosage as 6.25 mL. Rounding this amount to the nearest tenth, the nurse should administer how many mL?
6.3 mL
A nurse is converting an infant's weight from lb to kg. If the infant weighs 10 lb 4 oz, what is the infant's weight in kg? (Round to the nearest whole number.)
16 oz/lb x 4 oz = 0.25 lb 10 lb + 0.25 lb = 10.25 lb 2.2 lb/kg x 10.25 lb = 4.659090 kg ANS: 4.7 kg
A nurse is preparing to administer triazolam 0.25 mg PO. Available is triazolam 0.125 mg tablets. How many tablets should the nurse administer per dose?
2 tablets
A nurse is preparing to administer vasopressin 5 units IM to a client. Available is vasopressin 20 units/ml. How many ml should the nurse administer?
20 units/ml x 5 units = 0.25 ml ANS: 0.25 ml
A nurse is preparing to administer diazepam 3 mg IV bolus every 3 hr PRN anxiety. Available is diazepam injection 5 mg/ml. How many ml should the nurse administer per dose?
3 mg x 5 mg/ml = 0.6 ml ANS: 0.6 ml
A nurse is preparing to administer clindamycin 450 mg PO. The nurse reconstitutes a container of clindamycin powder to yield a final concentration of 75 mg/5 mL. How many mL should the nurse administer?
30 mL
a nurse is preparing to administer furosemide 30 mg IV bolus stat. Available is furosemide injection 10 mg/ml. How many ml should the nurse administer?
30 mg x 10 mg/ml = 3 ml ANS: 3 ml
A nurse is preparing to administer hydromorphone 4 mg PO every 4 hr PRN for pain. Available is hydromorphone oral liquid 1 mg/1 mL. How many mL should the nurse administer per dose?
4 mL
A nurse is preparing to administer haloperidol 5 mg by intermittent IV bolus over 30 min. Available is haloperidol 5 mg in 50 mL dextrose 5% (D5W). The nurse should set the IV pump to deliver how many mL/hr?
100 mL/hr
A nurse is preparing to administer ceftriaxone 250mg IM. The nurse reconstitutes a container of ceftriaxone to yield a final concentration of 350 mg/ML. How many mL should the nurse administer?
0.7
A nurse is preparing to administer magnesium gluconate 270 mg PO. Available is magnesium gluconate liquid 54 mg/5 mL. How many mL should the nurse administer?
25 mL
A nurse is preparing to administer 650 mg of acetaminophen syrup to a client. The amount available is acetaminophen syrup 160mg/5mL. How many tsp should the nurse administer per dose?
4 tsp
A nurse is preparing to administer oxacillin 500 mg IV bolus. The nurse reconstitutes a vial of oxacillin to yield a final concentration of 100 mg/ML. How many mL should the nurse administer?
5 mL
A nurse is preparing to administercefazolin 500 mg IV bolus. The nurse reconstitutes a vial of cefazolin to yield a final concentration of 100 mg/ML. How many mL should the nurse administer?
5 mL
A nurse is preparing to administer vancomycin 1 g every 12 hr. Available is vancomycin injection 1 g in 0.9% sodium chloride (0.9% NaCl) 250 mL to infuse over 60 min. The nurse should set the IV pump to deliver how many mL/hr?
63 mL/hr
A nurse is preparing to administer epinephrine hydrochloride 0.5 mg subcutaneous stat. How many mcg should the nurse administer?
500 mcg
A nurse is preparing to administer potassium chloride powder 20 mEq PO in 6 oz of water. How many mL of water should the nurse administer?
180 mL
A nurse is preparing to administer lithium 600 mg PO every 8 hr. Available is lithium carbonate 300 mg capsules. How many capsules should the nurse administer?
2 capsules
A nurse is preparing to administer diphenhydramine 25 mg PO to a client. The amount available is diphenhydramine elixir 12.5 mg/5 mL. How many mL should the nurse administer?
10 mL
A nurse is preparing to administer erythromycin ethylsuccinate 800 mg PO every 12 hr. Available is erythromycin ethylsuccinate suspension 400mg/5mL. How many mL should the nurse administer per dose?
10 mL
A nurse is preparing to administer lorazepam 2 mg IV bolus 20 min prior to surgery. Available is lorazepam injection 4 mg/ml. How many ml should the nurse administer?
2 mg x 4 mg/ml = 0.5 ml ANS: 0.5 ml
A nurse is preparing to administer digoxin 250 mcg PO daily. Available is digoxin 0.125 mg tablets. How many tablets should the nurse administer?
2 tablets
A nurse is preparing to administer quinapril 40 mg PO daily. Available is quinapril 20 mg tablets. How many tablets should the nurse administer daily?
2 tablets
A nurse is preparing to administer amoxicillin 500 mg PO every 8 hr. Available is amoxicillin oral suspension 250 mg/5 mL. How many tsp should the nurse administer per dose?
2 tsp
A nurse is preparing to administer trazodone 25 mg PO at bedtime. Available is trazadone 50 mg tablets. How many tablets should the nurse administer per dose?
0.5 tablets
A nurse is preparing a medication and calculates the dosage as 0.547 mL. Rounding this amount to the nearest hundredth, the nurse should administer how many mL?
0.55 mL
A nurse is preparing to administer ziprasidone 12.5 IM to an adolescent. The nurse reconstitutes a vial of ziprasidone to yield a final concentration of 20 mg/ML. How many mL should the nurse administer?
0.6
A nurse is preparing to administer acetaminophen 325 mg PO every 6 hr. Available is acetaminophen oral suspension 160 mg/5 mL. How many mL should the nurse administer per dose?
10 mL
A nurse is preparing to administer chlorpromazine 40 mg IM to a client. Available is chlorpromazine 25 mg/ml. How many ml should the nurse administer?
40 mg x 25 mg/ml = 1.6 ml ANS: 1.6 ml
A nurse is preparing to administer daptomycin 360 mg IV bolus. The nurse reconstitutes a vial of daptomycin to yield a final concentration of 0.5g/10 mL How many mL should the nurse administer?
7.2
A nurse is preparing to administer dextrose 5% in water (D5W) 250 mL to infuse over 30 min. The drop factor of the manual IV tubing is 15 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min?
125 gtt/min
A nurse is preparing to administer haloperidol 5 mg IM at 1715. At which of the following times should the nurse administer the medication?
5:15 p.m.
A nurse is preparing to administer digoxin 0.25 mg IV bolus. Available is digoxin injection 0.25 mg/ml. How many ml should the nurse administer per dose?
0.25 mg x 0.25 mg/ml = 1 ml ANS: 1 ml
A nurse is preparing to administer methadone 2.5 mg PO every 8 hr. Available is methadone 5 mg tablets. How many tablets should the nurse administer per dose?
0.5 tablets
A nurse is transcribing medication prescriptions for a group of clients. Which of the following is the appropriate way for the nurse to record medications that require the use of a decimal point? .4 mL 0.6 mL 8.0 mL 125.0 mL
0.6 mL The nurse should place a leading zero to the left of the decimal point when the dose is less than 1 and should not use a trailing zero at the end of the number. This ensures the number is read as "six tenths" of a milliliter.
A nurse is preparing to administer regular insulin 15 units and isophane insulin 40 units subcutaneous at 6:30 a.m. At which of the following times should the nurse administer the medication?
0630
A nurse is preparing to administer penicillin G benzathine 1,200,000 units IM. Available is penicillin G benzathine injection 600,000 units/ml. How many ml should the nurse administer per dose?
1,200,000 units x 600,000 units/ml = 2 ml ANS: 2 ml
A nurse is preparing to administer ceftriaxone 0.5 g IM The nurse reconstitutes a vial of ceftriaxone to yield a final concentration of 350 mg/ML. How many mL should the nurse administer?
1.4
A nurse is preparing a medication and calculates the dosage as 1.42 mL. Rounding this amount to he nearest tenth, the nurse should administer how many mL?
1.4 mL
A nurse is preparing to administer doxepin 75 mg PO at bedtime. Available is doxepin 50 mg tablets. How many tablets should the nurse administer?
1.5 tablets
A nurse is preparing to administer furosemide 60 mg PO daily. Available is furosemide 40 mg tablets. How many tablets should the nurse administer daily?
1.5 tablets
A nurse is preparing to administer pentamidine 175 mg IM. The nurse reconstitutes a vial of pentamidine to yield a final concentration of 100 mg/mL. How many mL should the nurse administer?
1.8 mL
A nurse is preparing to administer cefaclor 400 mg PO. The nurse reconstitutes a container or cefaclor powder to yield a final concentration of 187 mg/5 mL. How many mL should the nurse administer?
10.7 mL
A nurse is preparing to administer meperidine 100 mg IM stat. Available is meperidine injection 75 mg/ml. How many ml should the nurse administer?
100 mg x 75 mg/ml = 1.3 ml ANS: 1.3 ml
A nurse is preparing to administer furosemide 40 mg PO in 0.5 oz of orange juice. How many mL of orange juice should the nurse administer?
15 mL
A nurse is preparing to administer codeine 30 mg PO every 4 hr PRN for pain. The client last received the medication at 1 p.m. The earliest the nurse should administer the next dose is at which of the following times?
1700
A nurse is preparing to administer dextrose 5% in 0.45% sodium chloride (D50.45% NaCl) 1,500 mL to infuse over 8 hr. The nurse should set the IV pump to deliver how many mL/hr?
188 mL/hr
A nurse is preparing to administer nafcillin 0.5 g IM. The nurse reconstitutes a vial of nafcillin to yield a final concentration of 250 mg/mL. how many mL should the nurse administer?
2
A nurse is preparing to administer gabapentin 1,800 mg per day divided into three equal doses. The amount available is gabapentin 300 mg capsules. How many capsules should the nurse administer per dose?
2 capsules
A nurse is preparing to administer dextrose 5% in water 2 L to infuse over 6 hr. The nurse should administer how many mL?
2000 mL
A nurse is preparing to administer lactated Ringer's 2 L to infuse over 16 hr. The drop factor of the manual IV tubing is 10 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min?
21 gtt / min
A nurse is preparing to administer dextrose 5% in water (D5W) 1 L IV to infuse over 12 hr. The drop factor of the manual IV tubing is 15 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min?
21 gtt/min
A nurse is preparing to administer diphenhydramine 25 mg IV bolus stat. Available is diphenhydramine injection 50 mg/ml. How many ml should the nurse administer?
25 mg x 50 mg/ml = 0.5 ml ANS: 0.5 ml
A nurse is preparing to administer levothyroxine 0.3 mg IV bolus. The nurse reconstitutes a vial of levothyroxine to yield a final concentration of 100 mcg/mL. How many mL should the nurse administer?
3
A nurse is preparing to administer ampicillin 0.75 g IM every 6 hr to a client. The nurse reconstitutes a vial of ampicillin to yield a final concentration of 250 mg/mL. How many mL should the nurse administer?
3 mL/dose
A nurse is preparing to administer enoxaparin 30 mg subcutaneous to a client. Available is enoxaparin 60 mg/0.6 ml. How many ml should the nurse administer?
30 mg x 60 mg/0.6 ml = 0.3 ml ANS: 0.3 ml
A nurse is preparing to administer amlodipine 10 mg PO once per day to a client. The amount available is amlodipine 2.5 mg/tablet. How many tablets should the nurse administer?
4 tablets
A nurse is preparing to administer ampicillin 1.5 g IV bolus. The nurse reconstitutes a vial of ampicillin to yield a final concentration of 30 mg/ML. How many mL should the nurse administer?
50 mL
A nurse is preparing to administer ethosuximide 750 mg PO daily. Available is ethosuximide syrup 250 mg/tsp. How many mL should the nurse administer?
50 mL ?
A nurse is preparing to administer methylprednisolone acetate 60 mg IM every week. Available is methylprednisolone acetate injection 40 mg/ml. How many ml should the nurse administer per dose?
60 mg x 40 mg/ml = 1.5 ml ANS: 1.5 ml
A nurse is preparing to administer 0.45% sodium chloride (0.45% NaCl) 750 mL to infuse over 10 hr. The drop factor of the manual IV tubing is 60 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min?
75 gtt/min
A nurse is preparing to administer fluoxetine 35 mg PO daily. Available is fluoxetine solution 20 mg/5 mL. How many mL should the nurse administer daily?
8.8 mL ?
A nurse is preparing to administer 0.9% sodium chloride (0.9% NaCl) 1.5 L IV infuse over 6 hr. The drop factor of the manual IV tubing is 20 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min?
83 gtt/min
A nurse is preparing to administer 0.9% sodium chloride (0.9% NaCl) 500 mL IV to infuse over 6 hr. The drop factor of the manual IV tubing is 60 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min?
83 gtt/min
A nurse is preparing to administer amoxicillin 775 mg PO. The nurse reconstitutes a container of amoxicillin powder to yield a final concentration of 400 mg/5 mL. How many mL should the nurse administer?
9.7 mL
A nurse is preparing to administer nystatin 400,000 units PO. Available is nystatin powder 500,000 units / 120 mL. How many mL should the nurse administer?
96
A nurse is reviewing a client's prescriptions. The nurse should contact the provider to clarify which of the following prescriptions? Ampicillin 100 mg/kg/day by mouth in 4 equally divided doses Phenytoin 300 mg by mouth every 12 hours Metronidazole 500 mg IV bolus every 6 hr Acetaminophen 325 mg every 6 hr PRN for headache
Acetaminophen 325 mg every 6 hr PRN for headache This prescription contains name of medication, dosage, frequency, and circumstance for administration, but not the route.
A charge nurse is reviewing the types of prescriptions with a newly licensed nurse. Which of the following prescriptions should the nurse include as an example of a standing prescription? Oxycodone 5 mg by mouth every 4 hr as needed for pain Furosemide 20 mg IV stat Acetaminophen 650 mg by mouth every 6 hr for temperature greater than 38.4° C (101.2° F) Diazepam 10 mg IV 30 min prior to procedure
Acetaminophen 650 mg by mouth every 6 hr for temperature greater than 38.4° C (101.2° F) A standing prescription is protocol-based and contains directions for administration based upon specific situations, such as the development of a fever.
A nurse is caring for a client who reports severe back pain at 1400. The client's prescriptions include oxycodone extended-release 20 mg PO every 12 hr (last dose received at 0600) and oxycodone immediate-release 5 mg PO every 4 hr PRN (last dose received at 2300 the day before). Which of the following actions should the nurse take? Contact the provider to request an order for a different pain medication. Administer oxycodone immediate-release 5 mg PO at 1600. Administer oxycodone immediate-release 5 mg PO now. Contact the provider to request an increase in the oxycodone extended-release dose.
Administer oxycodone immediate-release 5 mg PO now. It has been 15 hr since the previous dose of oxycodone immediate-release, and the medication is prescribed every 4 hr as needed, so the nurse should prepare to administer a dose now to treat the client's pain.
A nurse is preparing to administer a medication to a newly admitted client. The nurse should identify which of the following actions as a part of the assessment phase of the nursing process? Asking the client about a history of medication allergies Instructing the client about the medication's adverse effects Determining whether the medication should be administered with or without meals Monitoring the client's response to the medication
Asking the client about a history of medication allergies The nurse should identify that data collection is part of the assessment phase of the nursing process. The nurse should collect data regarding the client's prior adverse reactions to medications, laboratory data, use of other medications, and pertinent vital signs as part of the assessment phase to ensure safe medication administration.
A nurse manager is reviewing a client's medical record and discovers that the client received a double dose of a prescribed medication. Which of the following actions should the nurse manager take first? Complete an incident report. Notify the provider about the medication error. Assess the client for adverse effects. Report the error to the risk manager.
Assess the client for adverse effects. When using the nursing process, the first step the nurse should take is to assess the client. By checking the client for adverse effects, the nurse can provide prompt treatment to minimize harm to the client.
A nurse discovers a medication error in which the client received twice the prescribed amount of medication. Which of the following actions should the nurse take first? Notify the provider. Complete an incident report. Assess the client. Report the error to the nurse manager.
Assess the client. When using the nursing process framework, the first action the nurse should take after discovering a medication error is to assess the client's status. This ensures that any adverse effects of the medication error are identified and that relevant interventions are implemented.
A nurse is preparing to administer glipizide 5 mg PO AC. At which of the following times should the nurse administer the medication?
Before meals
A nurse is administering medications to four clients. The nurse should identify which of the following nursing actions as a part of the evaluation phase of the nursing process? Collecting information about a client's pain level following administration of a narcotic Taking the blood pressure of a client before administering an antihypertensive medication Lowering the level of a client's bed before administering a benzodiazepine medication Instructing a client to rinse their mouth following administration of an inhalation corticosteroid
Collecting information about a client's pain level following administration of a narcotic The nurse should identify that collecting information from a client regarding a medication's therapeutic response is part of the evaluation phase of the nursing process. The nurse should include in the evaluation phase the client's therapeutic response, adverse effects, and client adherence to the medication therapy.
A nurse working in a medical-surgical unit is preparing to administer medications to a client. The nurse plans to use two forms of identification to verify that she has the right client. Which of the following actions can the nurse take to identify the client? (Select all that apply.) Compare the name on the client's wristband with the name in the medication administration record (MAR). Ask the client to state his date of birth. Check the room number in the medication administration record (MAR) with the room number of the client. Ask the client to state his name. Use the bar code scan to identify the client.
Compare the name on the client's wristband with the name in the medication administration record (MAR). Ask the client to state his date of birth. (MAR) with the room number of the client. Ask the client to state his name. Use the bar code scan to identify the client. Verifying the data on the client's wrist band is an acceptable method of identification. The client's date of birth is an acceptable identifier. The client's full name is an acceptable identifier. Scanning the client's bar code is an acceptable method of identification.
A nurse is preparing to administer insulin subcutaneously to a client. The nurse should document the administration of the medication immediately after which of the following actions? Taking the insulin from the automated dispensing machine Injecting the insulin Checking the client's blood glucose level Checking the correct dosage of the insulin
Injecting the insulin The nurse should document interventions, such as medication administration, immediately after they occur. The nurse should not delay documentation because this could lead to errors, such as omission of the documentation or administration of a second dose of medication to the client by another nurse. The nurse should never document an action prior to implementation.
A nurse is caring for a client who received lisinopril 30 min ago and is now reporting dizziness and headache. Which of the following actions should the nurse take first? Obtain the client's vital signs. Notify the provider. Document the client's response in the medical record. Tell the client to change positions slowly.
Obtain the client's vital signs. The first action the nurse should take when using the nursing process is to assess the client; therefore, the first action the nurse should take is to obtain the client's vital signs.
A nurse is preparing to administer an oral medication. Which of the following actions should the nurse take? (Select all that apply.) Provide client education about the medication. Check the expiration date of the medication. Verify the dosage of the medication. Call the client by name to confirm their identity. Ask the client if they have any allergies.
Provide client education about the medication. Check the expiration date of the medication. Verify the dosage of the medication. Ask the client if they have any allergies. The nurse should provide education for the client regarding the name and purpose of each medication when administering them to the client. The nurse should review the package information prior to administering the medication, including the expiration date. The nurse should review the package information prior to administering the medication, including the medication name and dosage. The nurse should ask the client about any allergies that they have to decrease the risk of an adverse reaction.
A nurse is preparing to administer digoxin 225 mcg for a pediatric client who has a heart rate above 90/min. Which of the following actions should the nurse take to ensure administration of the right dose? (Select all that apply.) Validate that the dosage is within the safe range. Confirm the medication amount is appropriate for the child. Verify that the medication is not expired. Check the client's heart rate prior to administration. Document the administration in the medication administration record.
Validate that the dosage is within the safe range. Confirm the medication amount is appropriate for the child. The nurse should validate that the dosage is within the safe range by using the child's current weight and a medication reference text that indicates appropriate dosage parameters. Closely adhering to the rights of medication administration, which include the right medication, right dose, right time, right route, right client, and right documentation, helps to reduce medication errors. The nurse should confirm the medication amount is appropriate when ensuring administration of the right dose to the child. Closely adhering to the rights of medication administration, which include the right medication, right dose, right time, right route, right client, and right documentation, helps to reduce medication errors.
A nurse is preparing to administer a high-alert pain medication to a client. Which of the following actions should the nurse perform during the planning stage of medication administration? Assess the effectiveness of the pain medication. Verify the dosage calculation with another nurse. Teach the client about the action of the medication. Ask the client to state their name and birthdate.
Verify the dosage calculation with another nurse. To ensure client safety and prevent harm, the nurse should always have another nurse verify dosage calculation prior to administering a high-alert medication. This occurs during the planning stage of medication administration.
A charge nurse is teaching a newly licensed nurse about medication reconciliation. Which of the following information should the charge nurse include in the teaching? Perform medication reconciliation daily during a client's hospitalization. Only newly prescribed medications need to be reviewed during a medication reconciliation. Vitamins, supplements, and over-the-counter (OTC) medications should be included in a medication reconciliation. The goal of medication reconciliation is to minimize the financial impact of prescription medications to the client.
Vitamins, supplements, and over-the-counter (OTC) medications should be included in a medication reconciliation. The nurse needs to include a list of all medications that the client takes, both prescribed and OTC. Medication reconciliation can identify potential interactions between medications and help avoid possible adverse effects.
A nurse is preparing to administer medication to a client who has a prescription for docusate sodium 50 mg capsule PO twice daily. The client refuses to take the medication because of nausea. Which of the following actions should the nurse take? Administer a docusate sodium capsule rectally. Withhold the medication. Administer 100 mg docusate sodium with the next scheduled administration. Encourage the client to take the medication as the provider prescribed.
Withhold the medication. The nurse should withhold the medication due to the client's nausea and notify the provider. If nausea persists, the nurse should contact the provider to prescribe an antiemetic.
A nurse is preparing to administer cefazolin 1.5 g IV bolus to a client who has a fluid restriction. The nurse reconstitutes a vial of cefazolin to yield a final concentration of 138 mg/mL. How many mL should the nurse administer?
10.9 mL
A nurse is preparing to administer methylprednisolone acetate 120 mg IM daily. Available is methylprednisolone acetate injection 80 mg/ml. How many ml should the nurse administer per dose?
120 mg x 80 mg/ml = 1.5 ml ANS: 1.5 ml
A nurse is preparing to administer lactated Ringer's 1 L to infuse over 2 hr. The drop factor of the manual IV tubing is 15 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min?
125 gtt/min
A nurse is preparing to administer clindamycin 0.2 g PO. The nurse reconstitutes a container of clindamycin powder to yield a final concentration of 75 mg/5 mL. How many mL should the nurse administer?
13.3 mL
A nurse is preparing to administer clindamycin 900 mg by intermittent IV bolus over 45 min. Available is clindamycin 900 mg in 100 mL dextrose 5% (D5W). The nurse should set the IV pump to deliver how many mL/hr?
133 mL/hr
A nurse is preparing to administer heparin 15,000 units subcutaneous every 12 hr. Available is heparin injection 20,000 units/ml. How many ml should the nurse administer per dose?
15,000 units x 20,000 units/ml = 0.75 ml ANS: 0.75 ml
A nurse is converting an infant's weight from lb to kg. If the infant weighs 6 lb 2 oz, what is the infant's weight in kg? (Round to the nearest whole number.)
16 oz/lb x 2 oz = 0.125 lb 6 lb + 0.125 lb = 6.125 lb 2.2 lb/kg x 6.125 lb = 2.784090 kg ANS: 2.8 kg
A nurse is caring for an infant who weighs 11 lb 4 oz. What is the infant's weight in lb? (Round to the nearest whole number.)
16 oz/lb x 4 oz = 0.25 lb 11 lb + 0.25 lb = 11.25 lb ANS: 11.25 lb
A nurse is preparing to administer phenytoin 5 mg/kg/day PO divided equally every 12 hr for an infant who weighs 12 lb 4 oz. How many mg should the nurse administer per dose? (Round to the nearest whole number. Use a leading 0 if it applies. Don't use a trailing zero.)
16 oz/lb x 4 oz = 0.25lb 12 lb + 0.25 lb = 12.25 lb 2.2 lb/kg x 12.25 lb = 5.568181 kg 5 mg/kg x 5.568181 kg = 27.840909 mg 27.840909 mg / 2(Q12H) = 13.920454 mg ANS: 13.9 mg
A nurse is converting a toddler's weight from lb to kg. IF the toddler weighs 20 lb 8 oz, what is the toddler's weight in kg? (Round to the nearest whole number.)
16 oz/lb x 8 oz = 0.5 lb 20 lb + 0.5 lb = 20.5 lb 2.2 lb/kg x 20.5 lb = 9.318181 kg ANS: 9.3 kg
A nurse is preparing to administer levothyroxine 200 mcg IV bolus. The nurse reconstitutes a vial of levothyroxine to yield a final concentration of 100 mcg/ML. How many mL should the nurse administer?
2 mL
A nurse is preparing to administer doxycycline 100 mg PO every 12 hr. Available is doxycycline 50 mg tablets. How many tablets should the nurse administer per dose?
2 tablets
A nurse is preparing to administer methylprednisolone 4 mg PO daily. Available is methylprednisolone 8 mg tablets. How many tablets should the nurse administer daily?
2 tablets
A nurse is preparing to administer zolpidem 10 mg PO at bedtime. Available is zolpidem 5 mg tablets. How many tablets should the nurse administer per dose?
2 tablets
A nurse is preparing to administer diphenhydramine 25 mg PO every 6 hr. Available is diphenhydramine syrup 12.5mg/5mL. How many tsp should the nurse administer per dose?
2 tsp
A nurse is preparing to administer famotidine 0.5 mg/kg PO to a child who weighs 50 lb. How many mg should the nurse administer per dose? (Round to the nearest whole number.)
2.2 kg/lb x 50 lb = 22.727272 kg 0.5 mg/kg x 22.727272 kg = 11.363636 mg ANS: 11.4 mg
A nurse is preparing to administer ceftazidime 40 mg/kg IV bolus every 8 hr to a toddler who weighs 22 lb. Available is ceftazidime injection 40 mg/ml. How many ml should the nurse administer per dose? (Round to the nearest whole number.)
2.2 lb/kg x 22 lb = 10 kg 40 mg/kg x 10 kg = 400 mg 40 mg/ml x 400 mg = 10 ml ANS: 10 ml
A nurse is preparing to administer cefdinir to a child who weighs 44 lb. The medication reference recommends administering 7 mg/kg PO every 12 hr. How many mg should the nurse plan to administer per dose? (Round to the nearest whole number.)
2.2 lb/kg x 22 lb = 20 kg 7 mg/kg x 20 kg = 140 mg ANS: 140 mg
A nurse is preparing to administer erythromycin ethyl succinate 50 mg/kg/day PO divided in equal doses every 6 hr to a toddler who weighs 32 lb. Available is erythromycin ethylsuccinate suspension 200mg/5ml. How many ml should the nurse administer per dose? (Round to the nearest whole number. Use a leading 0 if it applies. Don't use a trailing zero.)
2.2 lb/kg x 32 lb = 14.545454 kg 50 mg/kg x 14.545454 kg = 727.272727 mg 727.272727 mg / 4 (Q6H) = 181.818181 mg 200 mg/5ml x 181.818181 mg = 4.545454 mL ANS: 4.5 ml
A nurse is preparing to administer ampicillin 50 mg/kg/day PO divided in equal doses every 8 hr to a child who weighs 39.6 lb. Available is ampicillin oral suspension 250 mg/5 ml. How many ml should the nurse administer per dose? (Round to the nearest whole number.)
2.2 lb/kg x 39.6 lb = 18 kg 50 mg/kg x 18 kg = 900 mg 900 mg / 3(q8h) = 300 mg 250 mg/ 5 ml x 300 mg = 6 ml ANS: 6 ml
A nurse is preparing to administer amoxicillin 25 mg/kg/day PO divided equal doses every 8 hr to a preschooler who weighs 43 lb. Available is amoxicillin suspension 250 mg/5 ml. How many ml should the nurse administer per dose? (Round to the nearest whole number.)
2.2 lb/kg x 43 lb = 19.545454 kg 25 mg/kg x 19.545454 kg = 488.636363 mg 488.636363 mg/ 3(q8h) = 162.878787 mg 250 mg/5 ml x 162.878787 mg = 3.257575 ml ANS: 3.3 ml
A nurse is preparing to administer cefaclor 40 mg/kg/day PO divided in equal doses every 8 hr to a child who weighs 48 lb. Available is cefaclor suspension 375 mg/5 ml. How many ml should the nurse administer per dose? (Round to the nearest whole number.)
2.2 lb/kg x 48 lb = 21.818181 kg 40 mg/kg x 21.818181 kg = 872.727272 mg 872.727272 mg / 3(q8h) = 290.909090 mg 375 mg/5 ml x 290.909090 mg = 3.878787 ml ANS: 3.9 ml
A nurse is preparing to administer 0.9% sodium chloride 2,500 mL to infuse over 12 hr. The nurse should administer how many L?
2.5 L
A nurse is preparing to administer tobramycin 2.5 mg/kg IM to a preschooler who weighs 20 kg. Available is tobramycin injection 40 mg/ml. How many ml should the nurse administer per dose? (Round to the nearest whole number.)
2.5 mg/kg x 20 kg = 50 mg 40 mg/ml x 50 mg = 1.25 ml ANS: 1.3 ml
A nurse is preparing to administer ranitidine 50 mg by intermittent IV bolus every 8 hr. Available is ranitidine injection 50 mg in dextrose 5% water (D5W) 100 mL to infuse over 30 min. The nurse should set the IV pump to deliver how many mL/hr?
200 mL/hr
A nurse is preparing to administer hydrocortisone 200 mg intermittent IV bolus. Available is hydrocortisone powder for injection 1 g vial. The nurse reconstitutes the powder to yield a concentration of 50 mg/mL. How many mL should the nurse administer?
4 mL
A nurse is preparing to administer morphine 4 mg IV bolus every 3 hr PRN pain. Available is morphine injection 10 mg/ml. How many ml should the nurse administer per dose?
4 mg x 10 mg/ml = 0.4 ml ANS: 0.4 ml
A nurse is preparing to adminsiter rifampin 0.6 g PO daily. Available is rifampin 150 mg capsules. How many capsules should the nurse administer?
4 tablets
A nurse is preparing to administer amoxicillin 325 mg PO. The nurse reconstitutes a container of amoxicillin powder to yield an oral suspension with a final concentration of 400 mg/5mL. How many mL should the nurse administer?
4.1 mL
A nurse is preparing to administer methylprednisolone acetate 40 mg IM daily. Available is methylprednisolone acetate injection 20 mg/ml. How many ml should the nurse administer per dose?
40 mg x 20 mg/ml = 2 ml ANS: 2 ml
A nurse is preparing to administer famotidine 20 mg by intermittent IV bolus over 15 min. Available is famotidine 20 mg in 100 mL dextrose 5% (D5W). The nurse should set the IV pump to deliver how many mL/hr?
400 mL/hr
A nurse is preparing to administer pantoprazole 80 mg by intermittent IV bolus every 12 hr. Available is pantoprazole injection 80 mg in 0.9% sodium chloride (0.9% NaCl) 100 mL to infuse over 15 min. The nurse should set the IV pump to deliver how many mL/hr?
400 mL/hr
A nurse is preparing to 0.9% sodium chloride (0.9% NaCl) 500 mL IV to infuse over 2 hr. The drop factor of the manual IV tubing is 10 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min?
42 gtt/min
A nurse is preparing to administer fluconazole 200 mg PO. The nurse reconstitutes a container of fluconazole powder for oral suspension to yield a final concentration of 40 mg/ML. How many mL should the nurse administer?
5
A nurse is preparing to administer purified protein derivative 5 tuberculin units (TU) intradermal to a client. Available is 5 TU/ 0.1 ml. How many ml should the nurse administer?
5 TU x 5 TU/ 0.1 ml = 0.1 ml ANS: 0.1 ml
A nurse is preparing to administer morphine 5 mg subcutaneous to a client. Available is morphine 10 mg/ml. How many ml should the nurse administer?
5 mg x 10 mg/ml = 0.5 ml ANS: 0.5 ml
A nurse is preparing to administer diazepam 7 mg IV bolus every 4 hr PRN muscle spasm. Available is diazepam injection 5 mg/ml. How many ml should the nurse administer per dose?
5 mg/ml x 7 mg = 1.4 ml ANS: 1.4 ml
A nurse is preparing to administer levothyroxine 0.25 mg IV bolus stat. Available is levothyroxine injection 100 mcg/ml. How many ml should the nurse administer?
0.25 mg x 100 mcg/ml = 2.5 ml ANS: 2.5 ml
A nurse is caring for a client who states that his provider told him he is at risk for anaphylaxis following administration of amoxicillin and that he does not understand what this means. Which of the following is an appropriate response by the nurse? "Anaphylaxis is a predictable and often unavoidable secondary effect that can occur at a usual therapeutic dose." "Anaphylaxis will cause you to experience withdrawal symptoms when you discontinue taking the medication." "Anaphylaxis is an unusual response that can occur due to an inherited predisposition." "Anaphylaxis is a severe hypersensitivity or allergic reaction that is life-threatening."
"Anaphylaxis is a severe hypersensitivity or allergic reaction that is life-threatening." Anaphylaxis is a severe allergic reaction that can result in severe bronchoconstriction with laryngeal edema and a precipitous drop in blood pressure.
A nurse is preparing to administer digoxin 0.125 mg IV bolus stat. Available is digoxin injection 0.25 mg/ml. How many ml should the nurse administer?
0.125 mg x 0.25 mg/ml = 0.5 ml ANS: 0.5 ml
A nurse is preparing to administer a time-critical medication to a client at 0800. Which of the following times are appropriate for the nurse to administer the medication? (Select all that apply.) 0700 0745 0830 0845 0900
0745 0830 The nurse should follow facility policy when selecting the time to administer medication to the client. Typically, facility policy permits the nurse to administer a time-critical medication 30 min before or after the scheduled time for administration. 0745 is within 30 min of the 0800 administration time. 0830 is within 30 min of the 0800 administration time. Administering time-critical medications, such as antibiotics, in a timely manner helps to maintain therapeutic levels of the medication in the client's blood.
A nurse is preparing to administer codeine oral solution 30 mg PO to a client. The amount available is codeine 10mg/5mL. How many Tbsp should the nurse administer?
1 Tbsp
A nurse is preparing to administer cefotaxime 1 g IV bolus every 12 hr. Available is cefotaxime injection 1 g/50 ml. How many ml should the nurse administer per dose?
1 g x 1 g/50 ml = 50 ml ANS: 50 ml
A nurse is preparing to administer sucralfate 1 g PO twice daily to a client. Available is sucralfate 1,000 mg tablets. How many tablets should the nurse administer per dose?
1 tablet
A nurse is preparing to administer oxacillin 375 mg IM. The nurse reconstitutes a vial of oxacillin to yield a final concentration of 250mg/1.5 mL. How many mL should the nurse administer?
2.3 mL
A nurse is preparing to reconstitute and administer a powdered in a multidose vial. Which of the following actions should the nurse plan to take?
Label date and time
A nurse is teaching a class about error - prone abbreviations in medication prescriptions. The nurse should include that which of the following prescriptions has acceptable abbreviations?
Metoclopramide 10 mg IM Q6H PRN nausea
A nurse is preparing to administer 0.9% sodium chloride (0.9% NaCl) 1 L IV to infuse over 5 hr. The nurse should set the IV pump to deliver how many mL/hr?
200 mL/hr
A nurse is preparing to administer 0.9% sodium chloride (0.9% NaCl) 1 L to infuse over 5 hr. The nurse should set the IV pump to deliver how many mL/hr?
200 mL/hr
A nurse is preparing to administer midazolam IM to a client who is preoperative and weighs 132 lb. The medication reference states the safe dosage range is 0.07 to 0.08 mg/kg. What is the maximum safe dose the nurse should expect to administer? (Round to the nearest whole number.)
2.2 lb/kg x 132 lb = 60 kg 0.08 mg/kg x 60 kg = 4.8 mg ANS: 4.8 mg
A nurse should use which of the following units when measuring weight?
Gram
A nurse is teaching a newly licensed nurse about crushing medications. The nurse should explain that which of the following medications can be crushed? Extended-release oxycodone Sublingual nitroglycerine Enteric-coated aspirin Sucralfate tablets
Sucralfate tablets The nurse should explain that certain medications, such as those that are scored, can be safely crushed and mixed with food or water for a client who has difficulty swallowing. The nurse should check with the pharmacist before crushing a medication to make certain it can safely be crushed.
A nurse is assessing a client following administration of an antibiotic. The nurse should identify that which of the following findings is a manifestation of an anaphylactic reaction to the medication? Swollen lips Hypertension Low heart rate Constipation
Swollen lips The nurse should identify that swollen lips is a manifestation of an anaphylactic reaction. Other manifestations include stridor, dyspnea, wheezing, urticaria, and pruritis. The nurse should notify the rapid response team, elevate the client's head off the bed, apply high-flow oxygen, and prepare to administer epinephrine.
A nurse is preparing to administer digoxin 0.125 mg PO at 9:00 a.m. At which of the following times should the nurse administer the medication?
0900
A nurse is preparing to administer amoxicillin/clavulanate 250 mg PO to a client. Refer to the medication label below. How many mL should the nurse administer?
10 mL
A nurse is preparing to administer ondansetron 4 mg by intermittent IV bolus. Available is ondansetron injection 4 mg in 0.9% sodium chloride (0.9% NaCl) 25 mL to infuse over 15 min. The nurse should set the IV pump to deliver how many mL/hr?
100 mL/hr
A nurse is preparing to administer phenytoin 100 mg IV bolus every 8 hr. Available is phenytoin injection 50 mg/ml. How many ml should the nurse administer per dose?
100 mg x 50 mg/ml = 2 ml ANS: 2 ml
A nurse is preparing to administer potassium chloride 15 mEq PO every 12 hr. Available is potassium chloride liquid 20 mEq/15 mL. How many mL should the nurse administer per dose?
11 mL
A nurse is preparing to administer epoetin alfa 50 units/kg subcutaneous toa preschooler who weighs 40 lb. Available is epoetin alfa 2,000 units/ml. How many ml should the nurse administer? (Round to the nearest whole number. Use a leading 0 if it applies. Don't use a trailing zero.)
2.2 lb/kg = 40 lb -> 18.181818 kg 50 units/kg x 18.181818 kg = 909.090909 units 2,000 units/ml = 909.090909 units -> 0.454545ml ANS: 0.45 ml
A nurse is preparing to administer phenytoin 15 mg/kg/day PO divided in three equal doses to a client who weighs 120 lb. Available is phenytoin suspension 125 mg/5ml. How many ml should the nurse administer per dose? (Round to the nearest whole number.)
2.2 lb/kg x 120 lb = 54.545454 kg 15 mg/kg x 54.545454 kg = 818.18181 mg 818.18181 mg / 3 = 272.727272 mg 125 mg/5 ml x 272.727272 mg = 10.909090 ml ANS: 10.9 ml
A nurse is preparing to administer gentamicin to a client who weighs 165 lb. The medication reference recommends administering 2 mg/kg IM every 8 hr. How many mg should the nurse plan to administer per dose? (Round to the nearest whole number.)
2.2 lb/kg x 165 lb = 75 kg 2 mg/kg x 75 kg = 150 mg ANS: 150 mg
A nurse is preparing to administer amikacin IM to a client who weighs 176 lb. The medication reference states that the safe dosage range is 7.5 to 15 mg/kg/day divided every 12 to 24 hr. What is the maximum safe dose the nurse should expect to administer per day? (Round to the nearest whole number.)
2.2 lb/kg x 176 lb = 80 kg 15 mg/kg x 80 kg = 1200 mg ANS: 1200 mg
A nurse is preparing to administer potassium chloride 5 mEq/kg/day PO divided in equal doses every 6 hr to a child who weighs 64 lb. Available is potassium chloride liquid 40 mEq/15 ml. How many ml should the nurse administer per dose? (Round to the nearest whole number.)
2.2 lb/kg x 64 lb = 29.090909 kg 5 mEq/kg x 29.090909 kg = 145.454545 mEq 145.454545 mEq / 4(q6h) = 36.363636 mEq 40 mEq/15 ml x 36.363636 mEq = 13.636363 ml ANS: 13.6 ml
A nurse is preparing to administer valproic acid 45 mg/kg/day PO divided in equal doses every 8 hr to a child who weighs 66 lb. Available is valproic acid syrup 250 mg/5 ml. How many ml should the nurse administer per dose? (Round to the nearest whole number.)
2.2 lb/kg x 66 lb = 30 kg 45 mg/kg x 30 kg = 1350 mg 1350 mg/3 (q8h) = 450 mg 250 mg/ 5 ml x 450 mg = 9 ml ANS: 9 ml
A nurse is preparing to administer acyclovir 5 mg/kg IV bolus every 8 hr to a client who weighs 75 lb. How many mg should the nurse administer per dose? (Round to the nearest whole number.)
2.2 lb/kg x 75 lb = 34.090909 kg 5 mg/kg x 34.090909 kg = 170.454545 mg ANS: 170.5 mg
A nurse is preparing to administer cefazolin 500 mg every 8 hr. Available is cefazolin injection 500 mg in dextrose 5% in water (D5W) 100 mL to infuse over 30 min. The nurse should set the IV pump to deliver how many mL/hr?
200 mL/hr
A nurse is preparing to administer ceftazidime 1 g by intermittent IV bolus every 12 hr. Available is ceftazidime injection 1 g in 0.9% sodium chloride (0.9% NaCl) 50 mL to infuse over 15 min. The nurse should set the IV pump to deliver how many mL/hr?
200 mL/hr
A nurse is preparing to administer ceftriaxone 2 g by intermittent bolus every 24 hr. Available is ceftriaxone injection 2 g in dextrose 5% in water (D5W) 100 mL to infuse over 30 min. The nurse should set the IV pump to deliver how many mL/hr?
200 mL/hr
A nurse is preparing to administer cefuroxine 750 mg by intermittent IV bolus every 8 hr. Available is cefuroxine injection 750 mg in 0.9% sodium chloride (0.9% NaCl) 50 mL to infuse over 15 min. The nurse should set the IV pump to deliver how many mL/hr?
200 mL/hr
A nurse is preparing to administer amoxicillin 30 mg/kg/day PO divided in equal doses every 12 hr to an infant who weighs 5.5 kg. Available is amoxicillin suspension 125 mg/5 ml. How many ml should the nurse administer per dose? (Round to the nearest whole number.)
30 mg/kg x 5.5 kg = 165 mg 165 mg/ 2 (Q12H) = 82.5 mg 125 mg/5 ml x 82.5 mg = 3.3 ml ANS: 3.3 ml
A nurse is preparing to administer dextrose 5% in water (D5W) to infuse at 125 mL/hr. The drop factor of the manual IV tubing is 15 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min?
31 gtt/min
A nurse is preparing to administer dextrose 5% in water (D5W) 250 mL via IV bolus to infuse over 45 min. The nurse should set the IV pump to deliver how many mL/hr?
333 mL/hr
A nurse is reviewing a client's prescriptions. The nurse should contact the provider to clarify which of the following prescriptions? Phenytoin 100 mg PO every 8 hr Morphine 2.5 mg IV bolus PRN for incisional pain Regular insulin 7 units subcutaneous 30 min before breakfast and dinner Lisinopril 20 mg PO every 12 hr. Hold for systolic BP less than 110 mm Hg
Morphine 2.5 mg IV bolus PRN for incisional pain This prescription requires clarification because it is missing the frequency of medication administration.
A nurse on a medical unit is assisting with the orientation of a newly licensed nurse. The nurse should remind the newly licensed nurse to have a second nurse review the dosage of which of the following medications prior to administration? Heparin Acetaminophen Acetylcysteine Hydroxychloroquine
Heparin The nurse should have a second nurse check the dosage of high-alert medications, such as heparin, because serious client harm can occur if the dosage is excessive. High-alert medication classes include central nervous system drugs, chemotherapeutic agents, and anticoagulants.
A nurse is providing teaching regarding medication administration to a group of newly licensed nurses. Which of the following is a legal responsibility of a nurse? Prescribing the correct dosage Modifying the medication regimen Reporting medication errors Delegating administration to assistive personnel
Reporting medication errors A nurse is legally responsible for reporting medication errors according to facility policy.
A nurse is preparing to administer potassium gluconate 3 mEq/kg/day PO divided in equal doses every 6 hr to a preschooler who weighs 42 lb. Available is potassium gluconate liquid 20 mEq/15ml. How many ml should the nurse administer per dose? (Round to the nearest whole number.)
2.2 lb/kg x 42 lb = 19.090909 kg 3 mEq/kg x 19.090909 kg = 57.272727 mEq 57.272727 mEq / 4(Q6H) = 14.318181 mEq 20 mEq/15 ml x 14.318181 mEq = 10.738636 ml ANS: 11 ml
A nurse is preparing to administer clindamycin 300 mg by intermittent IV bolus every 8 hr. Available is clindamycin injection 300 mg in 0.9% sodium chloride (0.9% NaCl) 50 mL to infuse over 45 min. The nurse should set the IV pump to deliver how many mL/hr?
67 mL/hr
A nurse is preparing to administer 375 mg of cephalexin PO. The nurse reconstitutes a container of cephalexin powder to yield a final concentration of 0.25 g/5 mL. How many mL should the nurse administer?
7.5
A nurse is preparing to administer meperidine 75 mg subcutaneous every 4 hr PRN pain. Available is meperidine injection 100 mg/ml. How many ml should the nurse administer per dose?
75 mg x 100 mg/ml = 0.75 ml ANS: 0.75 ml
A nurse is caring for a client who is to receive topiramate XR 100 mg PO daily. The client tells the nurse that the capsule is too hard to swallow. Which of the following actions should the nurse take? Crush the contents of the capsule to administer in a small amount of pudding. Request extended-release sprinkles from the pharmacy. Ask the charge nurse to clarify the prescription with the provider. Withhold the medication until the time for the next dose.
Request extended-release sprinkles from the pharmacy. The nurse can administer topiramate XR in sprinkle form, if available. This is not changing the route of the medication. The sprinkle capsules can be opened and mixed with food for ease of swallowing while still remaining extended release.
A nurse is transcribing a provider's prescription for a client. The prescription reads morphine 2 mg IV bolus at 1400. The nurse should recognize this as which of the following types of medication orders? Routine order Stat order PRN order Single order
Single order A single (one-time) order stipulates to administer the medication one time either at a specific time the provider indicates or as soon as possible.
A nurse is preparing to administer potassium gluconate 2 mEq/kg/day PO divided equally every 12 hr to a child who weighs 50 lb. How many mEq should the nurse administer per dose? (Round to the nearest whole number.)
2.2 lb/kg x 50 lb = 22.727272 kg 2 mEq/kg x 22.727272 kg = 45.454545 mEq 45.454545 mEq / 2(q12h) = 22.727272 mEq ANS: 22.7 mEq