Order: Perphenazine 8 mg PO STAT
Available: Refer to the med label below
How many tablets will you administer? (Insert the numerical value only)
The Correct Answer is ["4"]
Desired dose = 8 mg
The medication label for Perphenazine Tablets, USP states: 2 mg per tablet.
- Determine the number of tablets needed:
Number of tablets = Desired dose / Dose per tablet
= 8 mg / 2 mg/tablet
= 4 tablets.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. "I will need to take this medication for several weeks before noticing its full effects.": Buspirone is an anxiolytic that works by modulating serotonin and dopamine receptors. Unlike benzodiazepines, it has a delayed onset of action, typically requiring 2–4 weeks of consistent use to achieve its full therapeutic benefit.
B. "If I don't feel better after one week, I will stop taking the medication.": Stopping Buspirone prematurely can prevent the medication from reaching its full effect. It requires patient adherence and time for therapeutic levels to build; discontinuation should only be under a provider’s guidance.
C. "I should feel less anxious within an hour of taking the first dose.": Buspirone does not provide immediate relief of anxiety symptoms. It is not effective for acute anxiety or panic attacks due to its slow onset and gradual buildup in the system.
D. "I can use this medication as needed when I feel a panic attack coming on.": Buspirone is not intended for PRN (as-needed) use. It must be taken on a scheduled basis to maintain steady blood levels and is not useful for rapid symptom relief in panic situations.
Correct Answer is B
Explanation
A. "You should abruptly stop taking this medication if you experience nausea.": Abrupt discontinuation of Carbidopa/Levodopa can lead to serious complications such as neuroleptic malignant-like syndrome. Nausea is a common early side effect and should be reported, not used as a reason to stop the medication suddenly.
B. "This medication may cause involuntary movements as a side effect.": Long-term use of Carbidopa/Levodopa can lead to dyskinesias, which are involuntary, erratic movements. These occur due to fluctuating dopamine levels and are a common motor complication in advanced Parkinson's disease.
C. "You should take this medication with a high-protein meal to enhance absorption.": High-protein meals can actually interfere with Levodopa absorption because dietary amino acids compete with the drug for transport across the blood-brain barrier. Protein intake should be evenly distributed throughout the day.
D. "This medication will improve your memory and cognitive function.": Carbidopa/Levodopa is primarily used to treat motor symptoms of Parkinson's disease by replenishing dopamine. It has minimal impact on cognitive symptoms and is not indicated for memory enhancement.
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