Correct Answer: B

Rationale: Monitoring for signs of toxicity, such as tremor, nausea, or confusion, is critical with lithium, as it has a narrow therapeutic range, and toxicity can occur with dehydration or drug interactions.
Choice A is incorrect because a low-sodium diet can increase lithium levels, leading to toxicity; a consistent, normal-sodium diet is recommended.
Choice C is incorrect because lithium takes 1-2 weeks to stabilize mood, not 24 hours.
Choice D is incorrect because lithium can be taken with or without food; a high-fat meal is not necessary and may delay absorption.

Correct Answer: C

Rationale:
Choice A is wrong because it is not the most urgent question to ask the client. While it is important to assess the client's social relationships and possible peer rejection, this can be done after addressing the client's safety and mental status.
Choice B is wrong because it is not relevant to the client's current condition and might make the client feel defensive or stigmatized. The nurse should avoid asking questions that imply blame or judgment and focus on the client's strengths and coping skills. This is the priority question for the nurse to ask the client because it assesses the client's risk for suicide, which is a serious and potentially life-threatening complication of conduct disorder. The nurse should use a direct and nonjudgmental approach when asking about suicidal ideation and plan.
Choice D is wrong because it is not appropriate for the nurse to ask the client in an emergency department setting. This question might imply that the client is responsible for their conduct disorder, which is a complex and multifactorial mental health condition. The nurse should collaborate with the client and their family to develop a behavior management plan that involves positive reinforcement, limit setting, and consistent consequences.

Correct Answer: C

Rationale: ST-segment elevation on ECG is a critical finding post-CABG, indicating possible myocardial ischemia or infarction, requiring immediate reporting to the provider for intervention.
Choice A is incorrect because incisional pain rated 4/10 is expected post-CABG and can be managed with analgesics; severe or worsening pain would be more concerning.
Choice B is incorrect because a temperature of 37.8°C is a low-grade fever, common in the first 48 hours post-surgery, and does not require immediate reporting unless persistent or higher.
Choice D is incorrect because drainage of 50 mL/hr from chest tubes is within the expected range for the first 24 hours post-CABG; excessive drainage (>100 mL/hr) would be concerning.

Correct Answer: B

Rationale: Monitoring for respiratory depression is critical with buprenorphine, a partial opioid agonist, as it can cause this serious side effect, especially if combined with other CNS depressants.
Choice A is incorrect because buprenorphine is taken regularly to prevent withdrawal and cravings, not only when symptoms occur.
Choice C is incorrect because weight gain is not a common side effect of buprenorphine; weight changes are more likely with other medications.
Choice D is incorrect because buprenorphine storage depends on the formulation (e.g., tablets, films), but specific storage instructions should be verified, and this is not the priority.

Correct Answer: A

Rationale: Recurrent, intrusive thoughts (obsessions) are a hallmark symptom of OCD, driving compulsive behaviors to alleviate anxiety caused by these thoughts.
Choice B is incorrect because euphoria is not associated with OCD; clients typically experience anxiety or distress.
Choice C is incorrect because OCD often causes insomnia due to anxiety or compulsive behaviors, not an increased need for sleep.
Choice D is incorrect because weight gain is not a primary feature; weight changes may occur secondary to medication or stress.