A nurse is preparing to administer dextromethorphan 30 mg PO. The amount available is dextromethorphan oral liquid 7.5 mg/5mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["20"]
To calculate the volume of dextromethorphan to be administered, we can use the following formula:
Volume (mL) = Desired Dose (mg) / Concentration (mg/mL)
Plugging in the given values:
Volume (mL) = 30 mg / (7.5 mg/5 mL)
Volume (mL) = 30 mg x (5 mL / 7.5 mg)
Volume (mL) = 20 mL
Therefore, the nurse should administer 20 mL of dextromethorphan oral liquid.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2"]
Explanation
To calculate the number of tablets needed, we'll set up a proportion:
x tablets / 100 mcg = 1 tablet / 50 mcg
Cross-multiplying:
50x = 100
Solving for x:
x = 100 / 50
x = 2
Therefore, the nurse should administer 2 tablets of levothyroxine daily.
Correct Answer is ["200"]
Explanation
First, convert the patient's weight from pounds to kilograms:
88 pounds x (1 kg / 2.20462 pounds) ≈ 39.9 kg
Next, calculate the cefpodoxime dose:
Dose = 5 mg/kg x 39.9 kg
Dose ≈ 199.5 mg
Rounding to the nearest whole number, the nurse should administer 200 mg of cefpodoxime per dose.
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