Dosage Calculation Med Surg Practice Test

A nurse is preparing to administer an enteral feeding through an NG tube at 250 mL over 4 hr. The nurse should set the pump to deliver how many mL/hr? (Fill in the blank with the numeric value only, round the answer to the nearest whole number, and use a leading zero if applicable. Do not use a trailing zero.)

Correct Answer: 63

​A nurse is preparing to administer epoetin alfa 50 units/kg subcutaneous to a preschooler who weighs 40 lb. Available is epoetin alfa 2,000 units/mL. How many mL should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero. )

0.45

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 the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

13.9 mg

A nurse is preparing to administer morphine oral solution 0.04 mg/kg to a newborn who weighs 2.5 kg. The amount available is morphine oral solution 0.4 mg/mL. How many mL should the nurse administer? (Fill in the blank with the numeric value only, round the answer to the nearest hundredth, and use a leading zero if applicable. Do not use a trailing zero.)

Correct Answer: 0.25

A nurse is preparing to administer diphenhydramine 5mg/kg/day PO divided equally every 8 hr to a school-age child who weighs 50 lb. Diphenhydramine oral solution 12.5 mg/5 mL is available. How many mL should the nurse administer per dose? (Fill in the blank with the numeric value only, round the answer to the nearest whole number, and use a leading zero if applicable. Do not use a trailing zero.)

Correct Answer: 15

A nurse is preparing to administer heparin 900 units/hr via IV infusion. The amount available is heparin 25,000 units in 500 mL 5% dextrose in water. The nurse should set the IV pump to deliver how many mL/hr? (Fill in the blank with the numeric value only, round the answer to the nearest whole number, and use a leading zero if applicable. Do not use a trailing zero.)

Correct Answer: 18

A nurse is preparing to administer verapamil 5.5 mg via IV bolus to a client who has hypertension. The amount available is verapamil 2.5 mg/1 mL. How many mL should the nurse administer? (Fill in the blank with the numeric value only, round to the nearest tenth, and use a leading zero if applicable. Do not use a trailing zero.)

Correct Answer: 2.2

A nurse is preparing to administer chlorothiazide 20 mg/kg/day PO divided equally and administered twice daily for a toddler who weighs 28.6 lb. The amount available is chlorothiazide oral suspension 250 mg/5 mL. How many mL should the nurse administer per dose? (Fill in the blank with the numeric value only, round the answer to the nearest tenth, and use a leading zero if applicable. Do not use a trailing zero.)

Correct Answer: 2.6

A nurse is caring for a toddler and is preparing to administer 0.9% sodium chloride 100 mL IV infused over 4 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 and use a leading zero if applicable. Do not use a trailing zero.)

Correct Answer: 25

A nurse is preparing to administer 700 mL of 0.9% sodium chloride IV to a child to infuse over 24 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? (Fill in the blank with the numeric value only, round the answer to the nearest whole number, and use a leading zero if applicable. Do not use a trailing zero.)

Correct Answer: 29

A nurse is preparing to administer 40 mL of 0.9% sodium chloride IV to infuse over 20 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? (Fill in the blank with the numeric value only, round the answer to the nearest whole number, and use a leading zero if applicable. Do not use a trailing zero.)

Correct Answer: 30

A nurse is preparing to administer amoxicillin 250 mg liquid suspension PO every 8 hr to an older adult client. The amount available is amoxicillin 50 mg/mL. How many mL should the nurse administer per dose? (Fill in the blank with the numeric value only, round the answer to the nearest whole number, and use a leading zero if applicable. Do not use a trailing zero.)

Correct Answer: 5

A nurse is preparing to administer acetaminophen 240 mg PO daily to a child who has a temperature of 38.9°C (102°F). The amount available is acetaminophen oral solution 160 mg/5 mL. How many mL should the nurse administer per dose? (Fill in the blank with the numeric value only, round the answer to the nearest tenth, and use a leading zero if applicable. Do not use a trailing zero.)

Correct Answer: 7.5

A nurse is preparing to administer ampicillin 50 mg/kg/day PO divided into 4 equal doses for a toddler who weighs 33 lb. Ampicillin 125 mg/5 mL oral solution is available. How many mL should the nurse administer per dose? (Fill in the blank with the numeric value only, round the answer to the nearest tenth, and use a leading zero if applicable. Do not use a trailing zero.)

Correct Answer: 7.5

A client has 1 L of dextrose 5% in 0.45% sodium chloride infusing IV at 125 mL/hr. How many hours will it take for the liter to infuse? (Fill in the blank with the numeric value only and round to the nearest whole number.)

Correct Answer: 8

A nurse is preparing to transfuse 250 mL of packed red blood cells (RBCs) to a client over 4 hr. A blood administration set is available that delivers 10 gtt/mL. The nurse should set the manual blood transfusion to deliver how many gtt/min? (Fill in the blank with the numeric value only, round the answer to the nearest whole number, and use a leading zero if applicable. Do not use a trailing zero.)

Correct Answer: 10

A nurse is preparing to administer desmopressin 0.3 mcg/kg in 0.9% sodium chloride 50 mL IV over 30 min to a client who weighs 154 lb. How many mcg of medication should the client receive? (Fill in the blank with the numeric value only, round the answer to the nearest whole number, and use a leading zero if applicable. Do not use a trailing zero.)

Correct Answer: 21

A nurse is preparing to administer lactated Ringer's (LR) 700 mL IV by infusion over 24 hr to a pediatric client. 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? (Fill in the blank with the numeric value only, round the answer to the nearest whole number, and use a leading zero if applicable. Do not use a trailing zero.)

Correct Answer: 29

A nurse is preparing to administer 150 units/hr of regular insulin to a client. Regular insulin is available at 1,500 units in 0.9% sodium chloride 500 mL. The nurse should set the IV pump to deliver how many mL/hr? (Fill in the blank with the numeric value only, round to the nearest whole number, and use a leading zero if applicable. Do not use a trailing zero.)

Correct Answer: 50