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The client is prescribed 3 g/hr of intravenous magnesium sulfate via continuous infusion. The label reads 20g of magnesium sulfate in 1000 mL of normal saline. How many mL/hr should the nurse set the pump to deliver the prescribed dose? Fill in the blank.
Correct Answer: 150 mL/hr
Rationale: Calculate: (3 g/hr ÷ 20 g) × 1000 mL = 150 mL/hr.
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The primary healthcare provider (PHCP) prescribes a bolus of regular insulin prior to the nurse administering a continuous infusion. The prescription is for 0.1 units/kg. The client weighs 116.36 kg (255.99 lbs). How many units of insulin should the nurse administer to the client? Fill in the blank. Round your answer to the nearest whole number.
Correct Answer: 12 units
Rationale: Calculate: 0.1 units/kg × 116.36 kg = 11.636 units, rounded to 12 units.
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.
The primary healthcare provider (PHCP) prescribes one liter of 0.9% saline to infuse over 6 hours. How many mL per hour will the nurse administer to the client? Fill in the blank. Round your answer to the nearest whole number.
Correct Answer: 167 mL/hr
Rationale: Convert 1 liter to 1000 mL. Divide by 6 hours: 1000 mL ÷ 6 hr = 166.67 mL/hr, rounded to 167 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 500 mL of 0.45% saline to be administered over one hour. The drop factor is 10 gtts/mL. How many drops per minute should the nurse set the flow rate at? Fill in the blank. Round your answer to the nearest whole number.
Correct Answer: 83 gtts/minute
Rationale: To calculate drops per minute, use the formula: (volume in mL × drop factor) ÷ time in minutes. Here, 500 mL × 10 gtts/mL = 5000 gtts, divided by 60 minutes = 5000 ÷ 60 ≈ 83.33, rounded to 83 gtts/minute.