Dosage Calculations Test 1
How much medication is in a 40% solution of 100 mls?
40
If 300 mL of a 15% solution is being prepared, ___ mL of medication solution (solute) will be used.
45
Medication on hand: Heparin 25,000 units in 500 mL How many units per mL
50
Order: Doxycycline monohydrate (Vibramycin) 100 mg, PO, initially, then 100 mg, PO, in two divided doses per day Available: Vibramyin 25 mg/ml. How many milligrams will the patient receive per dose after the initial dose?
50
Order: Cephalexin 0.5 g, PO, q6h. How many milligrams equal 0.5 g?
500
Order: Cinoxacin 1 g/day, PO, in two divided doses Drug available: 500 mg capsules How many milligrams would you give per dose?
500
Order: Ethambutol HCl 800 mg, PO, daily Parameter: 15 mg/kg/dPatient weight: 121 lb How many kilograms does your patient weigh?
55
The patient is to receive 500 mL of D5W with 20 units of synthetic oxytocin (Pitocin) IV at the rate of 0.004 units/min. How many mL per hour will the patient receive?
6
1 g: 15 mL expressed as a fraction is ___ g/100 mL.
6.67
Order: D5LR 1000 mL at 150 mL/hr. How many hours are required to administer the following fluid at the given rate?
6.7
The BSA of a 5-year-old patient is 0.9 m2 Medication order: Carmustine 75 mg/m2 every day times 2 days Available: 100 mg/10 mL vial The patient would receive a dose of _____ mL/day times 2 days.
6.8
How much water is in a 40% solution of 100 mls?
60
Calculate the total dose of a medication to be administered if a patient weighs 22 pounds and is to be given 60 mg/kg/day?
600
Medication order: Amikacin 500 mg/IM, q12h Patient's weight: 149 lb How many kilograms does the patient weigh?
67.7
A patient weights 150 pounds. How much does he weight in Kg's?
68.18
Order: Azithromycin (Zithromax) 300 mg, PO, first day, then 160 mg, PO, daily for the second through the fifth day Available: Zithromax 200 mg/5 ml. How many milliliters will the patient receive the first day?
7.5
Medication order: Meperidine (Demerol) 35 mg, IM, q4-6h, prn. Available: Demerol 50mg/ml. How many milliliters of Demerol would you give per dose?
80
Child's BSA: 1.1 m2 Medication order: Betamethasone 4 mg/m2/day PO, divided into four doses Available: syrup 0.6mg/5ml How many mL will you administer per dose?
9.17
The medication order is to mix 18 units of oxytocin in 650 mL normal saline. Start infusion at 20 mL/hr. Increase by 5 mL every 10 minutes until uterine contractions are 2 to 3 minutes apart. Do not exceed 45 miliunits/min. Maintain total IV fluid volume at 100 mL/hr. How many miliunits/min will the patient receive in the first 10 minutes?
9.2
Medication order: 35 mg of a medication by mouth tid Patient weight: 99 pounds Safe dose range: 2 to 4 mg/kg/day This is a safe medication order. A) True B) False
A
Patient weight: 21 kg Medication order: Aminophylline 110 mg in 500 mL of NS at 80 mL/hr Pediatric Dose: 0.84 mg/kg/hr Drug available: Aminophylline 250 mg/10 mL Will this dilution deliver 0.84 mg/kg/hr? A) True B) False
A
What should the nurse do if the medication order is not legible? A) Call the prescriber for clarification B) Do the best he or she can to interpret the drug order C) Refuse to give the medication D) Call the pharmacy for interpretation of the drug order
A
Order: 20 mg of a medication by mouth tid Patient weight: 132 pounds (60 kg) Safe dose range: 1 to 3 mg/kg/day This is a safe medication order. A) True B) False
A) True
There are various types of drug orders. The nurse must have an understanding of these drug orders. What is a one-time order?
An order that is given once, usually at a specified time
101. It is essential that the nurse follow the "five rights" of drug administration. One of the "five rights" is the "right drug". To ensure the right drug is given, the nurse should check the drug label three times. When should the drug label be checked?
At first contact with the drug bottle, before pouring the drug, and after pouring the drug
Patient weight: 15 kg Medication order: Lidocaine 5 mcg/kg/min Usual Pediatric dose: 2-5 mcg/kg/min Drug available: Lidocaine 1 g/5 mL Dilution: Lidocaine 300 mg in 250 mL of NS at 30 mL/hr Will this dilution deliver 5 mcg/kg/min at 30 mL/hr?
False
The primary care provider orders the medication to be given "ID". What does the abbreviation "ID" stand for?
Intradermal
Who is the manufacturer for the following drug label? Zocar (Simvastatin) 40 mg, 60 tablets. Distributed by MERCK and CO, INC.
Merck & Co.
The nurse is educating parents on an ear medication for a child with impacted cerumen (wax). What is the correct teaching on how to administer ear drops to a child?
Pull the auricle of the ear down and back.
When a nitroglycerine medication is ordered to be given transdermally, what precaution should the nurse take?
The nurse should wear gloves when administering the medication.
A medication order must contain seven basic components. Five of the seven components include the following: the patient's name, the date and time the order was written, the drug name, the physician or health care provider's signature, and the frequency of administration. What are the other two components necessary for a medication order?
The route of administration and the dosage
The nurse is providing education for a patient who has been ordered a steroid metered dose inhaler. What would be important for the nurse to teach this patient?
To rinse and gargle after use of the inhaler
Order: 35 mg of a medication by mouth tid Patient weight: 99 pounds Safe dose range: 2 to 4 mg/kg/day This is a safe medication order. A) True B) False
True
Patient weight: 32 kg Medication order: Nitroprusside 2 mcg/kg/min Pediatric dose: 200-500 mcg/kg/hr Drug available: Nitroprusside 50 mg/5 mL Dilution: 50.5 mg in 250 mL of NS at 19 mL/hr Will this dilution deliver 2 mcg/kg/min? A) True B) False
True
The primary care provider has ordered Albuterol inhaler, 2 puffs BID. How long should you instruct the patient to wait between puffs?
Wait 1 to 2 minutes between puffs.
Cover 0.35% of a decimal.
.0035
Convert 90 mcg to mg.
.09
Convert 422 grams to kilograms.
.42
Medication on hand: Insulin 50 units in 100 mL How many units per mL?
.5
Medication order: Meperidine (Demerol) 35 mg, IM, q4-6h, prn. Available: Demerol 50mg/ml. How many milliliters of Demerol would you give per dose?
.7
Medication order: Meperidine 70 mg and Atropine sulfate 0.4 mg, IM, STAT. Available: Meperdine 100 mg/ml and Atropine 400 mcg/ml. How many milliliters of meperidine would you give?
.7
1 decigram (dg) = ______________grams
0.1
The medication order is to administer a loading dose of digoxin (Lanoxin) 30 mcg/kg. The neonate weighs 5.8 pounds. Available: an ampule labeled Lanoxin 0.25 mg/mL How many mL will you administer?
0.32
Change 60% to a decimal.
0.6
Medication order: Atropine 0.3 mg Available: Atropine 0.5 mg/mL How many mL will you administer?
0.6
Medication order: Morphine 10 mg, IM, STAT. Available: Morphine 15 mg/ml. How many milliliters of morphine would you give?
0.7
Medication order: Dexamethasone (Decadron) 3 mg, IM, STAT. Available: Decadron 4 mg/ml. How many milliliters of Decadron would you give per dose?
0.8
Medication order: Morphine 3 mg, IM, q4-6h, PRN for 3 daysDrug available: Morphine 4 mg per 1 mL How many milliliters of morphine would you give per dose?
0.8
The medication order is to administer Panadol 10 mg/kg. The child weighs 80 pounds. Available: Panadol 160 mg/mL How many mL will the nurse administer?
0.8
Medication order: Diabinese 0.1 g PO daily The drug container label reads: Diabinese 100 mg/tablet How many tablets will you give?
1
Medication order: Meperidine 70 mg and Atropine sulfate 0.4 mg, IM, STAT. Available: Meperdine 100 mg/ml and Atropine 400 mcg/ml. How many milliliters of Atropine would you give?
1
Order: Cinoxacin 1 g/day, PO, in two divided doses Drug available: 500 mg capsules How many capsules would you give per dose?
1
Order: Cloxacillin 1 g/d, PO, in four divided doses, q6h. Available: 250 mg per capsule. How many capsule(s) would you give per dose?
1
Order: Timolol maleate (Blocadren) 10 mg, PO, bid; then, after 2 weeks, the patient is to receive 40 mg in two divided doses. Available: Blocadren 10 mg/tablet. How many tablet(s) should the patient receive per dose during the first 2 weeks?
1
Medication order: Hydroxyzine (Vistaril) 75 mg, IM, STAT Drug available: Vistaril 100 mg/2 mL How many milliliters of hydroxyzine would the patient receive?
1.5
Medication order: Oxacillin 250 mg, IM, q6h. Available: 1.5 ml/250 mg of Oxacillin. How many milliliters of oxacillin would you give per dose?
1.5
A child weighs 22 pounds. Convert to kilograms.
10
Order: Amoxicillin/clavulanate (Augmentin) 0.25 g, PO, q8h Available: 125 mg/5 ml. How many milliliters of Augmentin will you give per dose?
10
Order: D10W at 40 mL/hr. What is the drop rate per minute if the drop factor is 15 gtt/mL?
10
Order: D5 1/4 1000 mL at 100 mL/hr. How many hours are required to administer the following fluid at the given rate?
10
The medication order is to administer Prozac 40 mg PO qid. Available: Prozac liquid 20 mg per 5 mL How many mL will you administer?
10
The medication order is to administer tetracycline (Sulycin) 0.25 g, PO tid. The bottle of tetracycline is labeled 125 mg/5 mL. How many mL will the nurse give per dose?
10
Order: LR 1000 mL at 90 mL/hr. How many hours are required to administer the following fluid at the given rate?
11.1
4 Tablespoons = ______________teaspoons?
12
Furosemide 50mg IV push now. Available: Furosemide 40mg/10mL How many mL will you give?
12.5
The doctor overs Amoxicillin 1 gram in 1000 mls of normal saline over 8 hours. What is the rate in ml's/hours?
125
Medication order: Prednisone (Deltazone) 6 mcg/kg/min Patient Weight: 165 lb Available: 250 mL D5W with Delta zone 50 mg How many milliliters per hour will the nurse need to run the infusion?
135
The medication order is for Amikacin IV for a 25-pound child. Calculate the dosage if the normal pediatric dose is 12 mg/kg.
136.36
50. Order: D5W at 60 mL/hr. What is the drop rate per minute if the drop factor is 15 gtt/mL?
15
The medication order is to administer V-Cillin K 600,000 units PO qid. Available: V-Cillin K 200,000 units/5 mL How many mL will the nurse administer?
15
Medication order: Dobutamine 250 mg in 250 mL at 4.5 mcg/kg/min Patient Weight: 125 lb Calculate the flow rate in milliliters per hour.
15.34
The BSA of a patient who is 3 years old is 0.62 m2. Medication order: Daunorubicin 25 mg/m2 weekly Available: 2 mg/mL in 25 mL vial The patient would receive a dose of _____ mg/week.
15.5
Order: methyldopa (Aldomet) 0.75 g, PO, bid. Available: 250 mg tablets. How many milligrams of Aldomet should the patient receive per day?
1500
Order: methyldopa (Aldomet) 0.75 g, PO, bid. Available: Aldomet 250 mg/tablet. How many milligrams of Aldomet should the patient receive per day?
1500
Order: D5LR at 100 mL/hr. What is the drop rate per minute if the drop factor is 10 gtt/mL?
16.7; 17
The IV order is for D5W to infuse at 100 mL/hr. The drop factor is 10 gtt/mL. How many drops per minute (gtt/min) should the IV be regulated?
17
Medication order: magnesium sulfate 9 g IV Available: magnesium sulfate 50% in 50 mL vials How many mL will the nurse administer?
18
Medication order: Dyphylline 0.5 g, IM, q6h Drug available: Dyphylline 250 mg/mL How many milliliters of dyphylline would you give per dose?
2
Order: Dexamethasone (Decadron) 3 mg, PO, bid Drug available: Decadron 1.5 mg/tablet How many tablet(s) would you give per dose?
2
Order: Digoxin (Lanoxin) 0.5 mg, PO, daily. Available: Lanoxin 250 mcg tablets. How many tablet(s) would you give?
2
Order: Give 500 mg of Augmentin by mouth now. Avaiilable: Augmentin 250 mg tablets. How many tablets would you need to give?
2
Order: Megestrol acetate (Megace) 160 mg, PO, in four divided doses. Available: Megace 20 mg tablets. How many tablet(s) should the patient receive per dose?
2
Order: Megestrol acetate (Megace) 160 mg, PO, in four divided doses. Available: Megace 20 mg/tablet. How many tablet(s) should the patient receive per dose?
2
The medication order is to administer Panadol 10 mg/kg. The child weighs 80 pounds. Available: Panadol 160 mg/mL How many mL will the nurse administer?
2.27
If 30 mL of a 0.5% solution is being prepared from a 6% solution, ___ mL of the 6% solution will be used.
2.5
Order: Docusate sodium (Colace) 200 mg, PO, daily per NG tube Available: Colace 50 mg/5 mL How many milliliters of Colace will the patient receive?
20
Order: Promethazine 25 mg, PO, bid Available: Promethazine 6.25 mg/5 mL How many milliliters of promethazine will you give per dose?
20
Medication order: Bretylium tosylate 50 mg (Bretylol) in 50 mL of D5W at 5 mg/kg/hour Patient Weight: 40 kg Calculate the flow rate in milliliters per hour.
200
What would 9:15 PM in traditional time be in military time?
2115
What is the weight in pounds of someone who weighs 100 KGs?
220
Order: Carvedilol (Coreg) 12.5 mg, PO, bid. Available: Coreg 6.25 mg tablets. How many milligrams should the patient receive per day?
25
Order: D5 1/4 NS at 150 mL/hr. What is the drop rate per minute if the drop factor is 10 gtt/mL?
25
Order: D5LR at 150 mL/hr. What is the drop rate per minute if the drop factor is 10 gtt/mL?
25
What is the dosage on an order that says Ampicillin 1 Gram in 4 divided doses?
250 mg
Medication order: 100 mg/kg/dayPatient weight: 60 pounds The patient will receive _____ mg/day.
2727.27
A child weighs 65 pounds. Convert to kilograms.
29.55
Medication order: 50 mg/kg/day Patient weight: 65 pounds The patient weighs _____ kg.
29.55
How many times should a medication label be read before that medication is administered to a patient?
3 times
Order: Cimetidine (Tagamet) 200 mg, PO, qid with meals Available: Tagamet 300 mg/5 ml. How many milliliters of Tagamet will you give?
3.3
Medication order: Ampicillin 500 mg, IM, q6h. Label reads add 3.5 milliliters of sterile, resulting in 250 mg/ml. How many milliliters of diluent would you add to the ampicillin vial?
3.5
Medication order: lidocaine, continuous infusion at 2 mg/min on the infusion pump. Available: IV of 500 mL D5W with 2 g lidocaine added What will be the hourly rate for the infusion pump (mL/hour)?
30
Order: Potassium chloride (KCl) 15 mEq, PO, bid Available: Potassium chloride 10 mEq/15 mL How many milliequivalents (mEq) of KCl will the patient receive per day?
30
The medication order is for Amiken IV for a 45-pound child. Calculate the dosage if the normal pediatric dose is 15 mg/kg.
306.82
Order: TPN 1000 mL at 30 mL/hr. How many hours are required to administer the following fluid at the given rate?
33.3
32 oz = ______________ medium size glass (es)
4
Order: Amoxicillin 200 mg, PO, q8h Available: 250mg/5 ml. How many milliliters of Amoxicillin would you give per dose?
4
Order: Clindamycin 300 mg, PO, q8h Available: Clindamycin 75 mg/mL How many milliliters of clindamycin will you give per dose?
4
Order: Tagamet 0.4 g, PO, bid, and 0.8 g, at hour of sleep. Drug available: Tagamet 200 mg/tab. How many tablet(s) would you give per dose at hour of sleep?
4
The nurse wants to give 2 g of magnesium sulfate and has available a medication labeled 50% magnesium sulfate in 20 mL. How many mL will the nurse administer?
4
