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.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason:PCP overdose is more likely to cause hyperthermia (elevated body temperature) due to agitation and increased muscle activity, rather than hypothermia. Administering warmed IV fluids would not be appropriate, as the client’s body temperature needs to be monitored and potentially cooled, not warmed.
Choice B reason:Ammonium chloride is sometimes used to acidify urine in cases of certain drug overdoses to enhance excretion, but it is not a standard treatment for PCP overdose. PCP is primarily managed with supportive care, focusing on reducing agitation and protecting the patient from harm.
Choice C reason:Naloxone is used to reverse opioid overdoses by blocking opioid receptors. PCP, a dissociative drug, does not act on opioid receptors, so naloxone is ineffective in reversing its toxicity. This makes it an inappropriate choice for PCP overdose management.
Choice D reason:Patients with PCP overdose often exhibit agitation, aggression, or psychosis. Verbally attempting to calm the client is a priority to de-escalate the situation, reduce the risk of harm to the patient or others, and create a safer environment for further medical interventions, such as administering sedatives if needed.
Correct Answer is B
Explanation
Choice A reason:Recalling past coping mechanisms can be helpful, but it is not the priority in acute anxiety. The client may be too overwhelmed to focus on strategies without first establishing a sense of safety.
Choice B reason:Remaining with the client is the priority, as it provides a calming presence, ensures safety, and helps reduce the client’s anxiety by offering immediate support and reassurance during an acute episode.
Choice C reason:Encouraging verbalization of feelings is therapeutic but not the priority in acute anxiety. The client may need time to calm down before they can effectively express their emotions.
Choice D reason:Providing a diverting activity may help manage mild anxiety but is not the priority in an acute, moderate episode. Staying with the client to ensure safety and reduce distress takes precedence.
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