A patient is prescribed 150 mg/day of Lithium, divided into two equal doses. How much Lithium should be given per dose?
150 mg.
75 mg.
50 mg.
100 mg.
The Correct Answer is B
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Antianxiety medications do not protect the liver from alcohol; in fact, both can increase liver strain, especially with long-term use.
Choice B reason: Alcohol does not simply negate the effects but instead potentiates sedation, worsening impairment.
Choice C reason: Increased alertness is the opposite of what occurs; both substances are central nervous system depressants.
Choice D reason: The interaction between alcohol and antianxiety medications intensifies sedation, impairs coordination, and can suppress breathing, making it dangerous and potentially life-threatening.
Correct Answer is A
Explanation
Choice A reason: Disorganized, rapid, or pressured speech is a hallmark symptom of acute mania and reflects flight of ideas.
Choice B reason: Recent weight gain may relate to medication side effects or other conditions, not mania specifically.
Choice C reason: Hearing voices is a hallucination, which suggests psychosis or schizophrenia, not acute mania.
Choice D reason: Wearing all black may indicate a personal preference, not a diagnostic feature of mania.
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