A nurse is preparing to administer morphine 4 mg subcutaneous to a client. Available is morphine 10 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 ["0.4 "]
Volume (mL) = Desired dose / Concentration
Volume (mL) = 4 mg / 10 mg/mL
Volume (mL) = 0.4 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1.8"]
Explanation
Given:
- Desired dose of gentamicin: 1 mg/kg
- Client's weight: 154 lb
- Available strength of gentamicin solution: 40 mg/mL
First, convert the client's weight from pounds to kilograms:
154 lb ÷ 2.2= 70kg
Now, calculate the desired dose of gentamicin:
Desired dose = Dosage per kg × Weight Desired dose = 1 mg/kg × 670 kg Desired dose = 70 mg
Now, find out how many milliliters of gentamicin correspond to this dose: Volume (mL) = Desired dose / Concentration
Volume (mL) = 70 mg / 40 mg/mL Volume (mL) ≈ 1.75mL
rounded off to the nearest tenths= 1.8ml
Correct Answer is ["0.63 "]
Explanation
Given:
- Desired dose of testosterone cypionate: 125 mg
- Available strength of testosterone cypionate injection: 200 mg/mL
First, find out how many milliliters of testosterone cypionate correspond to the desired dose:
Volume (mL) = Desired dose / Concentration
Volume (mL) = 125 mg / 200 mg/mL Volume (mL) = 0.625 mL
Rounded off to the nearest hundredth= 0.63ml
So, the nurse should administer approximately 0.63 mL of testosterone cypionate per dose.
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