NUR445 Medication Calculation

A nurse is preparing to administer levothyroxine 50 mcg PO to a client. How many milligrams (mg) should the nurse plan to administer?

0.05 mg

A patient requires a dobutamine infusion at a rate of 5 mcg/kg/min. The patient weighs 70 kg. The concentration of dobutamine in the infusion is 250 mg in 500 mL of D5W. What is the infusion rate in mL/hour?

0.7 mL/hour

A client weighs 70 kg and is prescribed to receive a medication at a dose of 1.5 mcg/kg/min. Calculate the total dosage per minute for this client.

105 mcg/min

A client weighs 60 kg and requires a medication infusion at a rate of 2 mcg/kg/min. Calculate the infusion rate in mcg/min.

1200 mcg/min

A client weighs 70 kg and requires a medication infusion at a rate of 0.05 mcg/kg/min. The medication concentration is 500 mcg/mL. How many mL/hour should the nurse administer?

2.5 mL/hour

A client is receiving a continuous infusion of dopamine at a rate of 4 mcg/kg/min. The client weighs 70 kg. Calculate the total amount of dopamine the client is receiving per minute.

280 mcg/min

A nurse is preparing to administer an intravenous medication to a client. The medication is ordered to be infused over 2 hours. The nurse has a 500 mL bag of normal saline and a microdrip tubing that delivers 60 drops per mL. What is the appropriate drip rate per minute for this medication?

30 drops per minute

A client weighing 60 kg requires a continuous infusion of a medication at a rate of 0.1 mcg/kg/min. The medication is available in a concentration of 500 mcg/mL. How many mL/hr should the nurse administer to the client?

30 mL/hr

A client weighs 70 kg and requires a medication infusion at a rate of 0.1 mcg/kg/min. The medication concentration is 50 mcg/mL. How many mL/hour should be administered to the client?

35 mL/hour

A nurse is caring for a client who has an NG tube set to low intermittent suction. The nurse irrigates the NG tube twice with 30 mL of normal saline solution during his shift. At the end of the shift, the NG canister contains 475 mL. What amount of NG drainage should the nurse record? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

415 = X

A nurse is caring for a client who has diabetes and a new prescription for 14 units of regular insulin and 28 units of NPH insulin subcutaneously at breakfast daily. What is the total number of units of insulin that the nurse should prepare in the insulin syringe?

42 units

A patient weighs 60 kg and the ordered medication dosage is 0.05 mcg/kg/min. The medication is available in a concentration of 10 mcg/mL. How many mL/hour should the nurse administer to the patient?

5 mL/hour

A client requires a dobutamine infusion at a rate of 5 mcg/kg/min. The client weighs 70 kg. The concentration of dobutamine in the IV bag is 250 mg in 500 mL. How many mL per hour should the infusion pump be set to deliver?

50 mL/hr

A patient is prescribed to receive an IV infusion of 500 mL of medication over 4 hours. The drop factor of the IV tubing is 20 drops per mL. What should be the drip rate per minute to administer the IV infusion correctly?

60 drops per minute

A client weighs 70 kg and is prescribed a medication to be administered at a dose of 0.1 mcg/kg/min. Calculate the infusion rate in mcg/min for this client.

7 mcg/min

A nurse is preparing to infuse 1 liter of 0.9% sodium chloride IV over 8 hr with a tubing set that delivers 15 gtts/mL. The nurse should set the manual IV infusion to deliver how many drops/min? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Round if necessary. 31.25 = 31 gtt/min

A nurse is calculating the total fluid intake for a client during a 4-hr period. The client consumes 1 cup of coffee, 4 oz of orange juice, 3 oz of water, 1 cup of flavored gelatin, 1 cup of tea, 5 oz of broth, and 3 oz of water. The nurse should record how many mL of intake on the client's record? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Step 3: After converting all fluid amounts to mL, add them to calculate the client's total fluid intake. 240 mL (coffee) + 120 mL (orange juice) + 90 mL (water) + 240 mL (gelatin) + 240 mL (tea) + 150 mL (broth) + 90 mL (water) = 1,170 mL

A nurse is preparing to administer levothyroxine 0.175 mg PO once a day. The amount available is levothyroxine 88 mcg/tablet. How many tablets should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Step 5: Round if necessary. 1.9886 = 2 tablets

A nurse is preparing to administer 0.9% sodium chloride 1,200 mL IV to infuse over 24 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? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Step 5: Round if necessary. 12.5 = 13 gtt/min

A nurse is preparing to administer 0.9% sodium chloride (NSS) 3000 mL IV to infuse over 24 hr. The drop factor on the manual IV tubing is 10 gtt/mL. The nurse should set the manual IV infusion to deliver how many gtt/min? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Step 5: Round if necessary. 20.8333 = 21 gtt/min

A nurse is preparing to infuse a 250-mL unit of packed RBCs over 2 hr. The drop factor of the manual IV tubing is 15 gtts/mL. The nurse should adjust the flow rate to deliver how many drops per minute? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Step 5: Round if necessary. 31.25 = 31 gtt/min

A client is prescribed 1 g potassium phosphate IV to be infused continuously over 6 hr. Available is 1 g potassium phosphate in 250 mL dextrose 5% water (D5W). The nurse should set the IV pump to run at how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Step 5: Round if necessary. 41.6666 = 42 mL/hr

A nurse is preparing to administer amoxicillin 30 mg/kg/day divided equally every 12 hr to a toddler who weighs 33 lb. Available is amoxicillin 200 mg/5 mL suspension. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Step 5: Round if necessary. 5.625 = 5.6 mL

A nurse is preparing to administer cefprozil 15 mg/kg PO every 12 hr to a child. The child weighs 45 lb. Available is cefprozil 250 mg/5mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Step 5: Round if necessary. 6.1364 = 6 mL/dose

A nurse is preparing to administer amoxicillin 100 mg PO every 8 hr to a toddler who weighs 20 kg. The recommended dosage range is 20 to 25 mg/kg/day. Which of the following actions by the nurse is appropriate?

The nurse determines the prescription is insufficient to achieve the desired effect.

A client weighs 70 kg and requires a medication to be administered at a rate of 0.5 mcg/kg/min. The medication comes in a concentration of 200 mcg/mL. How many mL per hour should be administered to the client?

This response correctly calculates the mL per hour using the dosage calculation formula: (70 kg x 0.5 mcg/kg/min) / 200 mcg/mL = 0.175 mL/min x 60 min/hr = 10.5 mL/hr.

A nurse is calculating the intake of a client during the past 9 hr. The client's intake includes lactated Ringer's IV at 150 mL/hr, cefazolin 2 g IV intermittent bolus in 100 mL of 0.9% sodium chloride, two units of packed RBCs of 275 mL and 250 mL; two IV bolus infusions of 250 mL of 0.9% sodium chloride, famotidine 20 mg IV intermittent bolus in 50 mL of 0.9% sodium chloride. How many mL of intake should the nurse record?

Total intake = 2,525 mL

A nurse is preparing to administer 1 mg vitamin K to a newborn. The medication is available in 1 mg/0.5 mL. How much should the nurse administer? (Round to the nearest tenth. Use a leading zero when applicable. Do not use a trailing zero.)

X = 0.5

A nurse is completing an 8-hr I&O record for a client who consumed 4 oz juice, 6 oz tea, a 100 mL cup full of ice chips, an IV bolus of 150 mL, and 8 oz broth. The nurse should record how many mL of intake on the client's record?

X = 120 mL

A nurse is preparing to administer digoxin 8 mcg/kg/day PO to divide equally every 12 hr for a preschooler who weighs 33 lb. Available is digoxin elixir 0.05 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

X = 2.4

A provider prescribes dextrose 5% in water IV to infuse at 100 mL/hr. The drop factor on the manual IV tubing is 60 gtt/mL. The nurse should set the IV flow rate to deliver how many gtt/min? (Round the answer to the nearest whole number.)

X gtt/min = 100 gtt/min

A nurse is preparing to administer Ringer's lactate by continuous IV infusion at 120 mL/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? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

X gtt/min = 120 gtt/min

A nurse is preparing to administer potassium chloride 20 mEq suspension PO daily. The amount available is potassium chloride suspension 10 mEq/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth/whole number. Use a leading zero if it applies. Do not use a trailing zero.)

X mL = 2 mL

A nurse is preparing to administer digoxin 12 mcg/kg/day PO to divide equally every 12 hr to a school-age child who weighs 66 lb. Available is digoxin elixir 0.05 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

X mL = 3.6 mL

A nurse is preparing to administer liquid mycostatin 600,000 units PO TID. Available is mycostatin 100,000 units/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

X mL = 6 mL

A nurse is preparing to administer ampicillin 500 mg via intermittent IV bolus over 30 min. Available is 500 mg ampicillin in 50 mL dextrose 5% in water (D5W). The nurse should set the pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

X mL/hr = 100 mL/hr

A nurse is preparing to administer ticarcillin / clavulanate 3.1 g by intermittent IV bolus over 30 min. Available is ticarcillin / clavulanate 3.1 g in 50 mL 0.9% sodium chloride (NSS). The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

X mL/hr = 100 mL/hr

A nurse is preparing to administer 40 mEq of potassium chloride in 45% sodium chloride (NaCl) 500 mL IV to infuse 10 mEq/hr. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

X mL/hr = 125 mL/hr

A nurse is caring for a client is who has a deep vein thrombosis and is prescribed heparin by continuous IV infusion at 1,200 units/hr. Available is heparin 25,000 units in 500 mL D5W. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest tenth/whole number. Use a leading zero if it applies. Do not use a trailing zero.)

X mL/hr = 24 mL/hr

A nurse is preparing to instill 840 mL of enteral nutrition via a client's gastrostomy tube over 24 hr using an infusion pump. The nurse should set the infusion pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

X mL/hr = 35 mL/hr

A nurse is caring for a 1-month-old infant who weighs 3500 g and is prescribed a dose of cephazolin 50 mg/kg by intermittent IV bolus three times daily. How many mg should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

X mg = 175 mg

A nurse is caring for an adolescent client who has pneumonia and a prescription for cefpodoxime 5 mg/kg PO every 12 hr for 5 days. The client weighs 88 lb. How many mg should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

X mg = 200 mg

A nurse is preparing to administer vancomycin 15 mg/kg/day divided equally every 12 hr. The client weighs 198 lb. How many mg should the nurse administer with each dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

X mg = 675 mg/dose

A nurse is preparing to administer levothyroxine 100 mcg PO daily. Available is levothyroxine 50 mcg tablets. How many tablets should the nurse administer daily? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

X tableX tablet(s) = 2 tabletst(s) = 2 tablets

A nurse is caring for a client who has heart failure and a prescription for digoxin 125 mcg PO daily. Available is digoxin PO 0.25 mg/tablet. How many tablets should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

X tablet = 0.5 tablet

A nurse is preparing to administer clonazepam 1.5 mg PO in 3 equally divided doses every 8 hr for a client who has seizures. The amount available is clonazepam 0.5 mg tablets. How many tablets should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

X tablet(s) = 1 tablets

A provider prescribes quetiapine 50 mg PO divided equally every 12 hr for 3 days Available is quetiapine 25 mg tablets. How many tablets should the nurse administer per dose on day 3? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

X tablet(s) = 1 tablets

A nurse is preparing to administer levothyroxine 0.275 mg PO daily to a client. The amount available is levothyroxine 137 mcg/tablet. How many tablets should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero)

X tablet(s) = 2 tablets

A nurse is caring for a client who is receiving heparin 3,800 units subcutaneous daily. Available is heparin 5,000 units/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth.)

X= 0.8 mL