A nurse is preparing to administer an antipsychotic medication to a patient diagnosed with schizophrenia. The prescribed dose is 10 mg, and the medication is available in 5 mg tablets. How many tablets should the nurse administer?
0 tablet
3 tablets
0.5 tablet
2 tablets
The Correct Answer is D
Choice A reason: Zero tablets would result in the patient not receiving the required medication.
Choice B reason: Three tablets equal 15 mg, which is above the prescribed dose and could cause adverse effects.
Choice C reason: Half a tablet equals 2.5 mg, which is insufficient to meet the 10 mg prescribed dose.
Choice D reason: Two tablets equal the prescribed 10 mg, which is correct.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason:Reduced serotonin levels are strongly associated with depression, as serotonin regulates mood, sleep, and emotional stability. Many antidepressants, such as SSRIs, work by increasing serotonin availability in the brain, supporting its role in depression.
Choice B reason:Histamine is primarily involved in immune responses, wakefulness, and allergic reactions, not mood regulation. It is not commonly linked to depression, making it an incorrect choice.
Choice C reason:Glutamate is an excitatory neurotransmitter involved in learning and memory. While imbalances may play a role in some psychiatric conditions, it is not the primary neurotransmitter associated with depression.
Choice D reason:Norepinephrine is involved in arousal and stress responses, and its dysregulation can contribute to depression. However, serotonin is more consistently and prominently linked to the pathophysiology of depression, making it the better choice.
Correct Answer is B
Explanation
Choice A reason: Giving 150 mg in one dose would mean the full daily dose is administered at once, not divided as ordered.
Choice B reason: The total daily dose is 150 mg. Dividing this into two equal doses means 150 ÷ 2 = 75 mg per dose.
Choice C reason: Fifty mg per dose would only total 100 mg per day, which is below the prescribed dose.
Choice D reason: One hundred mg per dose would total 200 mg daily, which exceeds the prescribed 150 mg/day.
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