Correct Answer: B

Rationale: In this scenario, the most critical intervention is to obtain a wound swab for culture and sensitivity. This will help identify the causative organism present in the wound, enabling healthcare providers to prescribe the appropriate treatment. Initiating contact isolation (Choice A) may be necessary in certain situations but is not the priority in this case where infection is suspected. Assessing the temperature (Choice C) is important for monitoring the client's condition but does not address the underlying cause. Using alcohol-based solutions for hand hygiene (Choice D) is a standard practice for infection control but does not directly address the client's specific condition of a postoperative wound with evisceration and elevated temperature.

Correct Answer: B

Rationale: The correct answer is B: 'I should avoid eating foods high in potassium.' This statement indicates a misunderstanding as beta-blockers do not typically affect potassium levels. The other choices (A, C, and D) are all appropriate statements for a client prescribed a beta-blocker. Choice A shows understanding of the timing of medication administration, choice C addresses orthostatic hypotension concerns, and choice D highlights the importance of not abruptly stopping the medication to prevent adverse effects.

Correct Answer: A

Rationale: The correct answer is A: Electrocardiogram (ECG). An electrocardiogram should be performed first to assess for cardiac ischemia in a client with a history of CAD and chest pain. An ECG provides immediate information about the heart's electrical activity, helping to identify signs of ischemia or a heart attack. While other diagnostic tests like chest X-ray, arterial blood gases, and echocardiogram may also be necessary in the evaluation of chest pain, they do not provide the initial direct assessment of cardiac ischemia that an ECG does.

Correct Answer: B

Rationale: Confusion and altered mental status in a client with cirrhosis and associated ascites and jaundice are indicative of hepatic encephalopathy, a serious complication that requires immediate intervention. This condition can progress rapidly and lead to coma if not addressed promptly. Peripheral edema (choice A) and increased abdominal girth (choice C) are common manifestations of fluid retention in cirrhosis but may not require immediate intervention unless severe. Yellowing of the skin (choice D) is a classic sign of jaundice, which is already known in this client and may not necessitate immediate intervention unless associated with other concerning symptoms.

Correct Answer: C

Rationale: In this scenario, the best initial nursing action is to allow several minutes for the client to respond. This approach respects the cultural norms of the client, as in some cultures, direct eye contact may be perceived as disrespectful or intrusive. By giving the client time to gather his thoughts and respond at his own pace, the nurse promotes effective communication and demonstrates cultural sensitivity. Asking for assistance from social services to find a Korean interpreter (Choice A) may be necessary for further communication but is not the best initial action. Establishing indirect eye contact (Choice B) may still make the client uncomfortable. Repeating the question using simpler language (Choice D) may not address the underlying cultural aspect affecting the client's response.