Correct Answer: B

Rationale: Obtaining a 12-lead ECG is crucial in this situation to assess cardiac function due to the elevated potassium level. High potassium levels can lead to dangerous arrhythmias, and an ECG helps in detecting any cardiac abnormalities. Choices A, C, and D are incorrect. Suggesting a salt substitute can further elevate the client's potassium levels. Checking serum sodium levels is not the priority when dealing with high potassium levels. Advising the client to add citrus juices and bananas, which are high in potassium, would worsen the situation.

Correct Answer: A

Rationale: When assessing pain in non-verbal patients, looking for changes in vital signs that may indicate pain is crucial. While using alternative methods like touch or distraction can be helpful, they may not directly indicate the presence of pain. Using a pain scale appropriate for non-verbal patients is important, but it may not always provide immediate feedback. Observing for facial expressions or other non-verbal cues can be subjective and may not always accurately reflect the level of pain the patient is experiencing. Therefore, monitoring vital signs is a more objective way to assess pain in non-verbal patients.

Correct Answer: D

Rationale: Offering the client 240 ml (8 oz) of oral fluids every 4 hours is essential to maintain hydration in a client with dehydration who is receiving continuous IV infusion. This intervention helps ensure an adequate fluid balance. Monitoring the client's intake and output every 6 hours is necessary to assess hydration status and response to treatment. Administering furosemide to the client, choice B, is contraindicated in dehydration as it can further deplete fluid volume. Checking the IV infusion every 8 hours, as in choice C, is important but not as critical as ensuring oral fluid intake to promote hydration.

Correct Answer: B

Rationale: The essential question during screening for alcohol use disorder is asking about blackouts or loss of consciousness, which can be indicative of excessive drinking and related to alcohol use disorder. Choices A, C, and D are not as directly related to screening for alcohol use disorder. Employment status (Choice A) is not a primary question in alcohol use disorder screening. Sleep quality (Choice C) and family history of substance use (Choice D) may be relevant but are not as crucial as inquiring about blackouts or loss of consciousness.

Correct Answer: D

Rationale: Tremors, nervousness, and insomnia indicate that the dose may be too high, requiring a dose adjustment.