RN Hesi Med Surg Dosage Calculations | Nurselytic

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RN Hesi Med Surg Dosage Calculations Questions

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Question 1 of 5

A 4-year-old is admitted with croup and receives a prescription for a single dose of dexamethasone 0.6 mg/kg IM. The child weighs 35 pounds. How many mg should the nurse administer? (Enter numerical value only. If rounding is required, round to the nearest whole number.)

Correct Answer: 10

Rationale: Convert weight: 35 pounds × 0.454 kg/pound = 15.89 kg (rounded to 16 kg). The dose is 0.6 mg/kg, so 16 × 0.6 = 9.6 mg, rounded to 10 mg.

Question 2 of 5

The healthcare provider prescribes filgrastim 5 mog/kg/day subcutaneously for a client who weighs 132 pounds and has just completed chemotherapy. The medication is available in 480 mcg/0.8 mL. How many mL should the nurse administer? (Enter numerical value only. If rounding is required, round to the nearest tenth.)

Correct Answer: 0.5

Rationale: Weight: 132 / 2.2 = 60 kg. Dose: 5 mcg/kg/day × 60 = 300 mcg/day. Concentration: 480 mcg / 0.8 mL = 600 mcg/mL. Volume: 300 / 600 = 0.5 mL. [Note: Document states 500.0 mL, likely a typo; correct calculation yields 0.5 mL.]

Question 3 of 5

A child who weighs 66 pounds receives a prescription for amoxicillin 80 mg/kg/day by mouth in divided doses every 12 hours. The bottle is labeled, 'Amoxicillin for Oral Suspension, USP 400 mg per 5 mL.' How many mL should the nurse administer with each dose? (Enter numerical value only.)

Correct Answer: 15

Rationale: Weight: 66 / 2.2 = 30 kg. Daily dose: 80 mg/kg/day × 30 = 2400 mg/day. Per dose (every 12 hours): 2400 / 2 = 1200 mg. Volume: (1200 × 5) / 400 = 15 mL.

Question 4 of 5

A client is receiving a 200 mL bolus of 0.9% normal saline (NS) to be infused over 20 minutes. The nurse should set the Infusion pump to deliver how many mL/hour? (Enter numeric value only.)

Correct Answer: 600

Rationale: Infusion rate = 200 mL / (20 / 60) hours = 600 mL/hour.

Question 5 of 5

A child with a seizure disorder receives a prescription for phenytoin 20 mg by mouth every 8 hours. The suspension is available in 125 mg/5 mL. How many ml. should the nurse administer? (Enter the numerical value only. If rounding is required, round to the nearest tenth.)

Correct Answer: 0.8

Rationale: Volume = 20 mg × (5 mL / 125 mg) = 0.8 mL.

Similar Questions

A client who weighs 176 pounds receives a prescription for lorazepam 0.05 mg/kg intramuscularly 2 hours before a scheduled procedure. The medication is available in 4 mg/ml vial. How many ml should the nurse administer? (Enter numerical value only.)
The healthcare provider prescribes lamivudine oral solution 150 mg twice daily for a client who is HIV positive. The available bottle contains 240 mL of lamivudine labeled, '10 mg/mL.' How many mL should the nurse administer in a 24 hour period? (Enter numeric value only.)
The nurse plans to provide the next shift with the IV fluid balance for a client who had a 440 mL secondary infusion that was started 2 hours ago at a rate of 85 ml/hour via an infusion pump. What is the remaining volume to be infused? (Enter numeric value only.)
Dobutamine hydrochloride 2 mcg/kg/min is prescribed for a client weighing 165 pounds. The solution is mixed with 50 mg of dobutamine In 1,000 mL of DW. The nurse should set the Infusion pump to deliver how many mL/hour? (Enter numeric value only.)
The healthcare provider prescribes cefazolin 800 mg IM every six hours. The available vial is labeled, 'Cefazolin 1 gram,' and the instructions for reconstitution state, For IM use add 2.5 mL sterile water for injection to provide a total volume of 3.0 mL'. After reconstitution, the solution contains how many mg/mL? (Enter numeric value only. If rounding is required, round to the nearest whole number.)

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