A nurse preparing to administer morphine 7.5 mg subcutaneous. Available is morphine injection 10 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["0.75"]
Determine the total daily dosage:
The client is prescribed 7.5 mg of morphine.
Calculate the dosage per dose:
The medication is to be administered in a single dose.
Dosage per dose is 7.5 mg.
Determine the volume per dose:
The morphine injection contains 10 mg per mL.
The nurse needs to administer 7.5 mg per dose.
Divide 7.5 mg / 10 mg per mL = 0.75 mL per dose.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.8"]
Explanation
Convert the client's weight from pounds to kilograms:
There are 2.205 pounds in 1 kilogram.
118 lb = 118 lb / 2.205 lb/kg = 53.52 kg (rounded to two decimal places).
Determine the total dosage:
The client is prescribed 150 units/kg of epoetin.
The client weighs 53.52 kg.
The total dosage is 150 units/kg x 53.52 kg = 8,028 units.
Calculate the volume per dose:
The epoetin injection contains 10,000 units per mL.
The nurse needs to administer 8,028 units per dose.
To find the volume per dose:
10,000 units / 1 mL = 8,028 units / x mL
10,000x = 8,028
Divide each side by 10,000
x = 0.8028 mL
Round the answer to the nearest tenth:
Rounding 0.8028 to the nearest tenth gives us 0.8 mL.
Correct Answer is ["31"]
Explanation
Determine the flow rate in mL/min:
The desired flow rate is 125 mL/hr.
There are 60 minutes in an hour.
Flow rate in mL/min: 125 mL/hr ÷ 60 min/hr = 2.0833 mL/min.
Calculate the drip rate in gtt/min:
The drip factor of the tubing is 15 gtt/mL.
This means that for every 1 mL, there are 15 drops.
To find the drip rate in gtt/min:
Drip rate (gtt/min) = Flow rate (mL/min) × Drip factor (gtt/mL)
Drip rate = 2.0833 mL/min × 15 gtt/mL
Calculating the drip rate:
Drip rate = 31.25 gtt/min
Round the answer to the nearest whole number:
Rounding 31.25 to the nearest whole number gives us 31 gtt/min.
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