A nurse is preparing to administer phenelzine 90 mg PO divided in three equal doses daily to a client who has depression. Available is phenelzine 15 mg tablets. How many tablets should the nurse administer per day? (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 ["6"]
Step by step calculation:
Determine the total daily dosage: 90 mg
Available tablet strength: 15 mg per tablet
Calculate the number of tablets per day:
Number of tablets per day=Total daily dose (/mg)Tablet strength (mg/tablet)=90 mg/15 mg/tablet
Result:
Number of tablets per day=6
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Albuterol metered dose inhaler 2 inhalations every 4 to 6 hr PRN for bronchospasm: This prescription is appropriate for managing acute bronchospasm. Albuterol is commonly used as a rescue inhaler, and the frequency aligns with standard practice for its use.
B. Clozapine 25 mg PO daily: This dosage is appropriate for initiating treatment with clozapine, which often starts at a low dose due to the risk of agranulocytosis. Regular monitoring of blood counts is required but the prescription itself is clear.
C. Haloperidol 0.5 mg PO 2 times each day: This prescription raises a concern due to the formatting error (there is a missing space after "Haloperidol"). The clarity of the dose is crucial, especially with potent medications like haloperidol, and the nurse should confirm the intended dosage to avoid medication errors.
D. Flunisolide 80 mcg inhalation twice daily: This is a standard prescription for a corticosteroid inhaler, used for long-term control of asthma or COPD. The dosage and frequency are appropriate, requiring no further clarification.
Correct Answer is ["1.5"]
Explanation
Step by step calculation:
Determinethedosagerequired:75mg
Determinetheconcentrationavailable:50mg/mL
Usetheformula:
Volume(mL)=Requireddose(mg)/Concentration(mg/mL)
Volume(mL)=75mg/50mg/mL
Calculatethevolume:
Volume(mL)=1.5mL
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