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 client is receiving a secondary infusion of azithromycin 500 mg in 500 mL of normal saline (NS) to be infused over 2 hours. How many mL/hour should the nurse program the infusion pump? (Enter numerical value only.)

Correct Answer: 250

Rationale: Infusion rate = 500 mL / 2 hours = 250 mL/hour.

Question 2 of 5

The healthcare provider prescribes streptomycin 200 mg intramuscularly every 12 hours. The vial is labeled, 'Streptomycin 1 gram/2.5 mL. How many milliliters should the nurse administer? (Enter numerical value only. (If rounding is required, round to the nearest tenth.))

Correct Answer: 0.5

Rationale: Concentration: 1 g = 1000 mg / 2.5 mL. Proportion: 1000 mg / 2.5 mL = 200 mg / x mL. Solving, x = (200 × 2.5) / 1000 = 0.5 mL.

Question 3 of 5

A client is receiving one liter of DW 0.45% normal saline IV every 8 hours by gravity infusion. The IV tubing has a drip factor of 12 gtt/mL. The nurse should regulate the IV to deliver how many drops per minute? (Enter numeric value only. If rounding is required, round to the nearest whole number.)

Correct Answer: 25

Rationale: Infusion rate: 1000 mL / 8 hours = 125 mL/hour. Flow rate: (125 × 12) / 60 = 25 gtt/min.

Question 4 of 5

A client with deep vein thrombosis (DVT) is receiving a continuous Infusion of Heparin Sodium 20,000 Units In 5% Dextrose Injection 500 mL at the rate of 25 mL/hour. How many units of heparin should the client receive in 12 hours? (Enter numeric value only.)

Correct Answer: 12000

Rationale: Concentration: 20,000 units / 500 mL = 40 units/mL. Hourly dose: 25 mL/hour × 40 = 1000 units/hour. In 12 hours: 1000 × 12 = 12000 units.

Question 5 of 5

A client who weighs 60 kg receives a prescription for dalteparin 200 units/kg subcutaneously once a day for a month. The medication is available in 25,000 units/mL vial. How many mL should the nurse administer? (Enter numerical value. If rounding is required, round to the nearest tenth.)

Correct Answer: 0.5

Rationale: Dose: 200 units/kg × 60 = 12000 units. Volume: 12000 / 25000 = 0.48 mL, rounded to 0.5 mL.

Similar Questions

The healthcare provider prescribes metoclopramide 7.5 mg/mL IM every 3 hours PRN vomiting for a client who is receiving chemotherapy. The nurse prepares an injection using a 2 ml. prefilled syringe cartridge labeled, 'metoclopramide 5 mg/mL.' How many mL should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.)
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.)
The healthcare provider prescribes a hydration infusion of normal saline to run over 3 hours at 30 mL/kg for a client who is dehydrated and weighs 70 kg. The nurse should program the infusion pump to deliver how many mL/hour? (Enter numeric value only.)
The healthcare provider prescribes amoxicillin 500 mg every 8 hours for a child who weighs 88 pounds. The recommended maximum safe dose is 50 mg/kg/24 hour. The available suspension is labeled, Amoxicillin Suspension 250 mg/5 mL. Based on this child weight, how many mL should the nurse administer? (Enter numerical value only. (If rounding is required, round to the whole number.))
The healthcare provider prescribes amoxicillin 500 mg every 8 hours for a child who weighs 88 pounds. The recommended maximum safe dose is 50 mg/kg/24 hour. The available suspension is labeled, Amoxicillin Suspension 250 mg/5 mL. Based on this child weight, how many mL should the nurse administer ? (Enter numerical value only. (If rounding is required, round to the whole number.))

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