A patient is prescribed 40 mg/day of Fluoxetine, administered once daily. If Fluoxetine is available in 20 mg capsules, how many capsules should the patient take each day?
0 capsules
3 capsules
1 capsule
2 capsules
The Correct Answer is D
Choice A reason: Zero capsules means the patient would not receive treatment.
Choice B reason: Three capsules equal 60 mg, which is an overdose compared to the prescribed 40 mg.
Choice C reason: One capsule equals 20 mg, which is only half the prescribed daily dose.
Choice D reason: Two capsules equal 40 mg, which matches the prescribed dose exactly.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Monitoring lithium levels is essential because of its narrow therapeutic index; toxicity can occur if levels rise slightly above the therapeutic range.
Choice B reason: Weight gain is not an indication of lithium toxicity; instead, toxicity signs include tremors, nausea, diarrhea, and confusion.
Choice C reason: Lithium is not addictive, and therapy is often long-term to prevent relapse of mood episodes.
Choice D reason: Diuretics are contraindicated with lithium because they increase the risk of toxicity by altering sodium and fluid balance.
Correct Answer is C
Explanation
Choice A reason:Glutamate is the primary excitatory neurotransmitter in the brain, promoting neuronal activity. It is not typically targeted for its inhibitory effects in anxiety treatments, as excessive glutamate activity may contribute to heightened anxiety or overstimulation.
Choice B reason:Dopamine is involved in reward, motivation, and movement regulation. While imbalances in dopamine can play a role in some psychiatric conditions, it is not the primary neurotransmitter targeted for its inhibitory effects in anxiety disorders.
Choice C reason:Gamma-aminobutyric acid (GABA) is the main inhibitory neurotransmitter in the brain, helping to calm neuronal activity and reduce anxiety. Many anti-anxiety medications, such as benzodiazepines, enhance GABA’s effects to promote relaxation and reduce symptoms of anxiety.
Choice D reason:Norepinephrine is an excitatory neurotransmitter associated with the body’s stress response and arousal. Elevated levels are often linked to increased anxiety, so it is not targeted for inhibitory effects in anxiety treatments.
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