A nurse is preparing to administer amitriptyline 300 mg PO to a client who has major depressive disorder. Available is amitriptyline 75 mg tablets. How many tablets 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 ["4"]
Rationale:
Step by step calculation:
Determine the dosage required: 300 mg
Available tablet strength: 75 mg per tablet
Calculate the number of tablets:
Number of tablets=Required dose (mg)/Tablet strength (mg/tablet)=300 mg/75 mg/tablet
Result:
Number of tablets=4
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2"]
Explanation
Step by step calculation:
Determinethetotaldailydosage:900mg
Determinehowmanydosesperday:Every8hoursmeans3dosesperday
Calculatethedosageperadministration:
Doseperadministration=Totaldailydose(mg)/Numberofdosesperday=900mg/3
Doseperadministration=300mg
Availablecapsulestrength:150mgpercapsule
Calculatethenumberofcapsules:
Numberofcapsulesperdose=Requireddoseperadministration(mg)Capsulestrength(mg/capsule)=300mg/150mg/capsule
Numberofcapsulesperdose=2
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.
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