Nokea
A client receives a prescription for oxytocin 2 milliunits/min intravenously (IV) for labor augmentation. The IV bag contains oxytocin 20 units in lactated Ringer's 1 liter. How many mL/hour should the nurse program the infusion pump to deliver? (Enter numerical value only.)
Correct Answer: 6
Rationale: Concentration: 20 units = 20000 milliunits in 1000 mL = 20 milliunits/mL. Dose: 2 milliunits/min × 60 = 120 milliunits/hour. Volume = 120 / 20 = 6 mL/hour.
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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.]
A client is receiving a secondary infusion of vancomycin 1,500 mg in 250 mL to be infused over two hours. The IV administration set delivers 10 gtt/mL. How many gtt/min should the nurse regulate the infusion? (Enter numerical value only. If rounding is required, round to the nearest whole number.)
Correct Answer: 208
Rationale: Flow rate: (250 mL × 10 gtt/mL) / (2 × 60) = 20.833 gtt/min × 10 = 208.33 gtt/min, rounded to 208.
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.
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.))
Correct Answer: 10
Rationale: To determine the volume to administer, first convert the child's weight from pounds to kilograms: 88 pounds × 0.454 kg/pound = 39.952 kg (rounded to 40 kg). The safe dose is 50 mg/kg/24 hours, so 50 × 40 = 2000 mg/day. The prescribed dose is 500 mg every 8 hours, or 500 × 3 = 1500 mg/day, which is safe. The suspension is 250 mg/5 mL. Set up a proportion: 250 mg / 5 mL = 500 mg / x mL. Solving, x = (500 × 5) / 250 = 10 mL.
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.