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
Understanding the Problem
Total daily dose of phenelzine: 90 mg
Divided into 3 equal doses
Strength of each tablet: 15 mg
We need to find the total number of tablets per day.
Calculations
Calculate the dose per administration:
Dose per administration = Total daily dose / Number of doses
Dose per administration = 90 mg / 3 = 30 mg
Calculate the number of tablets per dose:
Tablets per dose = Dose per administration / Tablet strength
Tablets per dose = 30 mg / 15 mg/tablet = 2 tablets
The nurse should administer 2 tablets per day.
Since the client will receive 2 tablets per dose and will take 3 doses per day, the total number of tablets for the day is:
2 tablets/dose × 3 doses/day = 6 tablets/day
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2"]
Explanation
Desired dose: 10 mg
Available concentration: 5 mg/mL
To determine the volume to administer, we can use the following formula:
Volume to administer (mL) = Desired dose (mg) / Concentration (mg/mL)
Volume to administer = 10 mg / (5 mg/mL) = 2 mL
Therefore, the nurse should administer 2 mL of olanzapine.
Correct Answer is A
Explanation
A. Divalproex 1.5 g PO twice daily:
Divalproex (valproic acid) is used for managing mania and typically dosed between 750 mg and 3 g daily, depending on the specific needs of the client and their blood levels. However, 1.5 g twice daily (3 g total daily) might be higher than usual initial dosing and could warrant clarification to ensure that this is an appropriate dose for the client and does not exceed recommended maximums.
B. Lithium 300 mg PO three times daily:
Lithium is commonly prescribed for mania, and 300 mg three times daily is a standard dosing regimen. Lithium levels are monitored to ensure therapeutic efficacy and avoid toxicity, so this dosage is within a typical range.
C. Clonazepam 0.5 mg PO three times daily:
Clonazepam is a benzodiazepine that can be used to manage anxiety or agitation associated with mania. A dose of 0.5 mg three times daily is within the usual range for short-term management and does not typically require clarification.
D. Risperidone 3.0 mg PO daily:
Risperidone is an atypical antipsychotic used to manage symptoms of mania, and 3 mg daily is a common starting dose. This dosage is appropriate and generally does not require further clarification.
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