Correct Answer: A

Rationale: A serum potassium level of 6.5 mEq/L is concerning in a client with CKD as it indicates hyperkalemia, which requires immediate intervention to prevent cardiac complications. Hyperkalemia can lead to life-threatening arrhythmias, particularly in patients with impaired kidney function. Serum sodium, creatinine, and blood glucose levels, while important, are not as acutely dangerous as severe hyperkalemia in this context.

Correct Answer: A

Rationale: Monitoring serum creatinine levels daily is the essential nursing action to prevent nephrotoxicity from aminoglycoside antibiotics. Aminoglycosides can cause kidney damage, so monitoring serum creatinine levels helps in detecting early signs of nephrotoxicity. Administering the antibiotic over a longer period of time (choice B) does not directly prevent nephrotoxicity. Encouraging increased fluid intake (choice C) is a general good practice but not specifically aimed at preventing nephrotoxicity. Restricting dietary protein intake (choice D) is not a direct preventive measure against aminoglycoside-induced nephrotoxicity.

Correct Answer: B

Rationale: Confusion and altered mental status are concerning in a client with cirrhosis as they may indicate hepatic encephalopathy, a serious complication that requires immediate intervention. Increased abdominal girth can be seen in ascites, yellowing of the skin is due to jaundice, and peripheral edema is associated with fluid retention in cirrhosis, but confusion and altered mental status are more closely linked to hepatic encephalopathy, which can progress rapidly and needs urgent attention.

Correct Answer: A

Rationale: The best action for the nurse to take in this situation is to pull up a chair and sit beside the client's bed. By doing so, the nurse can provide emotional support and comfort to the critically ill patient who is feeling vulnerable. Sitting with the client also shows empathy and a willingness to listen to the client's needs. Reassuring the client that the nurse will return shortly (Choice B) may not address the immediate need for emotional support. Asking another nurse to stay with the client (Choice C) may not establish the same level of connection and comfort as sitting with the client personally. Continuing to take vital signs and then leaving the room (Choice D) disregards the client's emotional needs in that moment.

Correct Answer: A

Rationale: A warm shower can help alleviate stiffness, allowing the client to be more comfortable and mobile before the procedure. This intervention promotes increased comfort and mobility, which may help the client proceed with the procedure later in the day. Administering anti-inflammatory medication (Choice B) may be helpful but may take time to be effective, while range-of-motion exercises (Choice C) may be challenging for the client due to stiffness. Rescheduling the procedure (Choice D) does not address the immediate need to alleviate stiffness.