A nurse is preparing to administer amitriptyline 150 mg PO at bedtime. The amount available is amitriptyline 75 mg tablet. How many tablets should the nurse administer per dose?
(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 ["2"]
Step 1: Determine the dosage required. Required dosage = 150 mg
Step 2: Determine the dosage available per tablet. Available dosage per tablet = 75 mg
Step 3: Calculate the number of tablets needed. Number of tablets needed = Required dosage ÷ Available dosage per tablet Number of tablets needed = 150 mg ÷ 75 mg
Step 4: Perform the division. 150 ÷ 75 = 2
The nurse should administer 2 tablets per dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2.0"]
Explanation
To calculate the dosage, follow these steps:
Step 1: Identify the prescribed dose.
The prescribed dose is 25 mg.
Result: 25 mg.
Step 2: Identify the concentration of the medication.
The concentration is 12.5 mg/mL.
Result: 12.5 mg/mL.
Step 3: Calculate the volume to administer.
Volume (mL) = (Prescribed dose in mg) ÷ (Concentration in mg/mL).
Volume (mL) = 25 mg ÷ 12.5 mg/mL.
Volume (mL) = 2 mL.
Result: 2 mL.
So, the nurse should administer 2.0 mL of diphenhydramine elixir per dose.
Correct Answer is ["5"]
Explanation
Step 1: Determine the total volume to be infused. = 1 liter (L)
Step 2: Convert the total volume from liters to milliliters (mL). Calculation: 1 L × 1000 mL/L = 1000 mL
Step 3: Determine the infusion rate. = 200 mL/hr
Step 4: Calculate the infusion time in hours. Calculation: 1000 mL ÷ 200 mL/hr = 5 hours
Step 5: Round the answer to the nearest whole number if necessary. = 5 hours (no rounding needed)
The nurse should expect the IV pump to infuse over 5 hours.
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