A nurse is preparing to administer famotidine 40 mg PO at bedtime. Available is famotidine 20 mg/tablet. How many tablets should the nurse administer? (Round the answer to the whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["2"]
The nurse should administer 2 tablets of famotidine.
Calculation:
Desired dose = 40 mg
Tablet strength = 20 mg/tablet
Number of tablets = Desired dose / Tablet strength = 40 mg / 20 mg/tablet = 2 tablets
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["15.3"]
Explanation
Step-by-step solution:
1. Convert pounds to kilograms:
1 lb = 0.453592 kg
54 lb x 0.453592 kg/lb = 24.49 kg
2. Calculate the total daily dose of phenobarbital:
Total daily dose = dose per kg/day x weight in kg = 5 mg/kg/day x 24.49 kg = 122.45 mg/day
3. Calculate the dose per administration:
Since the medication is divided into 2 doses per day,
Dose per administration = Total daily dose / number of doses = 122.45 mg/day / 2 doses = 61.225 mg/dose
4. Calculate the volume to administer:
The medication concentration is 20 mg/5 mL, which simplifies to 4 mg/mL.
Volume = Dose per administration / Concentration = 61.225 mg / 4 mg/mL = 15.30625 mL
5. Round to the nearest tenth:
Volume = 15.3 mL
Therefore, the nurse should administer 15.3 mL of phenobarbital per dose.
Correct Answer is ["1"]
Explanation
Calculations:
Convert mcg to mg: 250 mcg = 0.25 mg
Desired dose = 0.25 mg
Tablet strength = 0.25 mg/tablet
Number of tablets = Desired dose / Tablet strength = 0.25 mg / 0.25 mg/tablet = 1 tablet
The nurse should administer 1 tablet of digoxin.
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