A nurse is preparing to administer morphine 0.3 mg/kg PO to a client who weighs 99 lb.
Available is morphine oral solution 4 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["3.4 "]
Given:
- Desired dose of morphine: 0.3 mg/kg
- Client's weight: 99 lb
- Available strength of morphine oral solution: 4 mg/mL
First convert the client's weight from pounds to kilograms: 99 lb ÷ 2.20462 = 44.91 kg (rounded to the nearest hundredth)
The desired dose of morphine:
Desired dose = Client's weight × Dose per kg Desired dose = 44.91 kg × 0.3 mg/kg
Desired dose ≈ 13.473 mg
The milliliters of morphine oral solution this corresponds to:
Volume (mL) = Desired dose / Concentration Volume (mL) = 13.473 mg / 4 mg/mL Volume (mL) ≈ 3.37 mL
So, the nurse should administer approximately 3.4 mL of morphine oral solution.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. To convert ounces (oz) to milliliters (mL), you can use the conversion factor of 1 oz = 29.5735 mL. Therefore, to find out how many milliliters are in 8 ounces:
8 oz * 29.5735 mL/oz = 236.588 mL ≈ 240 mL
B. 960ml is incorrect
C. 30ml is incorrect
D. 480ml is incorrect
Correct Answer is ["1.6 "]
Explanation
Filgrastim dose: 480 mcg
Filgrastim injection concentration: 300 mcg/mL Calculation:
To find the volume of the injection needed, divide the dose by the concentration: Volume (mL) = Dose/ Concentration
Volume (mL) = 480 mcg / 300 mcg/mL
Volume (mL) ≈ 1.6 mL (rounded to the nearest tenth)
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