A nurse is preparing to administer digoxin 0.375 mg PO dally. Available is digoxin elixir 0.05 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 ["7.5"]
1. Determine the volume based on concentration and dosage:
Digoxin dosage (mg): 0.375 mg
Digoxin concentration (mg/mL): 0.05 mg/mL (from the available elixir)
Volume (mL) = Dosage (mg) / Concentration (mg/mL)
Volume (mL) = 0.375 mg / 0.05 mg/mL
2. Round the answer to the nearest tenth:
The calculated volume is 7.5 mL. Rounding to the nearest tenth:
Volume (mL) = 7.5 mL (rounded)
Therefore, the nurse should administer 7.5 mL of digoxin elixir.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.9"]
Explanation
1. Convert patient weight to kilograms (kg):
Weight (lb) = 99 lb
Conversion factor: 1 kg = 2.2 lb
Weight (kg) = 99 lb / 2.2 lb/kg
Weight (kg) = 45 kg (rounded to one decimal place)
2. Calculate the total morphine dosage:
Morphine dosage (mg/kg) = 0.2 mg/kg (given)
Weight (kg) = 45 kg (calculated)
Total morphine dosage (mg) = Dosage (mg/kg) x Weight (kg)
Total morphine dosage (mg) = 0.2 mg/kg x 45 kg
Total morphine dosage (mg) = 9 mg (rounded to one decimal place)
3. Determine the volume to administer based on medication concentration:
Morphine concentration (mg/mL) = 10 mg/mL (available injection)
Total morphine dosage (mg) = 9 mg (calculated)
Volume (mL) = Dosage (mg) / Concentration (mg/mL)
Volume (mL) = 9 mg / 10 mg/mL
4. Round the answer to the nearest tenth:
Volume to administer = 0.9 mL (rounded to one decimal place)
Therefore, the nurse should administer 0.9 mL of morphine injection.
Correct Answer is ["5","000","000"]
Explanation
The nurse should recognize that the 5 g amount is equal to 5,000,000 mcg (rounded to the nearest whole number).
Here's the conversion process:
Conversion factor: There are 1,000,000 mcg in 1 gram (g).
Calculation:
Amount in mcg = Amount in g x Conversion factor (mcg/g)
Amount in mcg = 5 g x 1,000,000 mcg/g
Rounding the answer:
Amount in mcg = 5,000,000 mcg (rounded to nearest whole number)
Therefore, the 5 g amount is equivalent to 5,000,000 mcg.
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