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 B
Explanation
A. Over-the-counter oral preparations can be taken with this medication. - This statement is not relevant to the prescription instructions provided.
B. Choose the same day of each week to take this medication. - Correct. Alendronate is typically taken once a week, so it's important for the client to choose a consistent day each week to take the medication.
C. The client can return to bed after taking the medication, but before eating. - The client should remain upright for 30 minutes after taking alendronate to prevent esophageal irritation.
D. Take the medication at 1800, 30 min after the evening meal. - The prescription specifies to take the medication upon waking, not in the evening.
Correct Answer is D
Explanation
A. The total volume of the oral suspension is not documented on the drug.
B. The medication is to be stored at temperatures of 20 to 25 degree Celsius. The instructions also state that the drug is not to be frozen. These don’t require refrigeration.
C. The drug contains 125mg/ 5ml and not for every ml.
D. It has been clearly indicated on the drug that it is to be shaken well before use.
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