The primary healthcare provider (PHCP) prescribes magnesium sulfate at 2 grams/hour. The nurse has magnesium sulfate 20 grams in 500 mL of 0.9% saline on hand. How many mL per hour will the nurse administer? Fill in the blank.
Correct Answer: 50 mL/hr
Rationale: Calculate: (2 g/hr ÷ 20 g) × 500 mL = 50 mL/hr.
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The nurse is caring for a client prescribed IV heparin. The client is prescribed 18 units/kg/hr. The client weighs 111.8 kg (245.96 Ibs). The heparin is labeled with 25,000 units in 250 mL of D5W. How many mL/hr should this client receive? Fill in the blank. Round to the nearest whole number.
Correct Answer: 20 mL/hr
Rationale: Calculate dose: 18 units/kg/hr × 111.8 kg = 2012.4 units/hr. Flow rate: (2012.4 units/hr ÷ 25,000 units) × 250 mL = 20.12 mL/hr, rounded to 20 mL/hr.
The nurse is preparing to administer a regular insulin IV bolus to a client who has hyperglycemic-hyperosmolar state (HHS). The primary health care provider (PHCP) has prescribed an initial bolus dose of 0.1 unit/kg. The client weighs 125.90 kg (276.98 lbs). How much regular insulin should the nurse administer to the client as an IV bolus? Fill in the blank. Round your answer to the nearest whole number.
Correct Answer: 13 units
Rationale: Calculate: 0.1 units/kg × 125.90 kg = 12.59 units, rounded to 13 units.
The primary healthcare provider (PHCP) prescribes 2350 mL of 0.9% saline to be administered over five hours to a client with severe hypovolemia. How many mL/hr will the nurse administer? Fill in the blank.
Correct Answer: 470 mL/hr
Rationale: Calculate: 2350 mL ÷ 5 hr = 470 mL/hr.
The primary healthcare provider (PHCP) prescribes 500 mg of intravenous (IV) metronidazole to be administered over thirty minutes. The pharmacy supplies the medication in a bag labeled 500 mg of metronidazole in 100 mL of 0.9% saline. How many mL/hour should the nurse administer to the client? Fill in the blank.
Correct Answer: 200 mL/hr
Rationale: Convert 30 minutes to 0.5 hours. Flow rate: 100 mL ÷ 0.5 hr = 200 mL/hr.
The primary healthcare provider (PHCP) prescribes 4 mg of morphine intramuscular (IM). The medication vial reads morphine sulfate, 10 mg/mL. How many mL should the nurse administer? Fill in the blank. Record your answer using 1 decimal place.
Correct Answer: 0.4 mL
Rationale: Calculate: 4 mg ÷ 10 mg/mL = 0.4 mL.
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