A client with human immunodeficiency virus (HIV) begins acti...

A client with human immunodeficiency virus (HIV) begins active labor at 38 weeks gestation and receives a prescription for zidovudine 2 mg/kg IV, to be administered over 1 hour. The client weighs 185 lbs. Based on the client's weight, how many mg should the nurse prepare to administer? (Enter numerical value only. If rounding is required, round to the nearest whole number.)

Correct Answer: 168

Rationale: Weight: 185 / 2.2 = 84.09 kg. Dose: 2 mg/kg Ã— 84.09 = 168.18 mg, rounded to 168 mg.

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The nurse plans to administer a bolus dose of IV Heparin based on the client's weight. The prescribed bolus dose is 100 units/kg. The client weighs 198 pounds. How many units of Heparin should the nurse administer? (Enter numeric value only.)

Correct Answer: 9000

Rationale: Weight: 198 pounds / 2.2 = 90 kg. Dose: 100 units/kg Ã— 90 = 9000 units.

The nurse is preparing to administer methylprednisolone 40 mg IV. The medication vial is labeled '125 mg per 2 mL.' How many mL of medication should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest hundredth.)

Correct Answer: 0.64

Rationale: Concentration: 125 mg / 2 mL = 62.5 mg/mL. Volume = 40 / 62.5 = 0.64 mL.

A client receives a prescription for warfarin 2 mg IM daily. The pharmacy delivers a vial labeled, warfarin 5 mg/single-use vial. The instructions read, reconstitute with 2.7 mL of sterile water for injection to yield 2 mg/mL. How many mL should the nurse administer? (Enter the numerical value only.)

Correct Answer: 1

Rationale: Volume: 2 mg / 2 mg/mL = 1 mL.

A client with a renal calculi receives a prescription for an intravenous infusion of 0.9% Sodium chloride Injection, USP 1,000 mL to be infused over 2.5 hours. The nurse should program the infusion pump to deliver how many mL/hour? (Enter numeric value only. If rounding is required, round to the nearest whole number.)

Correct Answer: 400

Rationale: Infusion rate = 1000 mL / 2.5 hours = 400 mL/hour.

The healthcare provider prescribes heparin 1,400 units/hour intravenously (IV). The IV bag contains heparin 20,000 units in 250 mL dextrose 5% in water. How many mL/hr should the nurse program the infusion pump to deliver? (Enter numeric value only. If rounding is required, round to the nearest whole number.)

Correct Answer: 18

Rationale: Infusion rate = (1400 units/hour Ã— 250 mL) / 20000 units = 17.5 mL/hour, rounded to 18.