Correct Answer: A

Rationale: The most critical instruction for a client being discharged following treatment for Guillain-Barre syndrome is to avoid exposure to respiratory infections. Guillain-Barre syndrome can affect the respiratory system, making infections particularly dangerous. While relaxation exercises, physical therapy, and rest periods are beneficial for overall well-being and recovery, preventing respiratory infections takes precedence due to the potential life-threatening complications associated with respiratory compromise in Guillain-Barre syndrome.

Correct Answer: A

Rationale: Placing a portable toilet next to the bed is the most appropriate intervention in this situation. It reduces the need for the client to walk long distances, thereby preventing falls and reducing discomfort. Choice B, assisting with walking exercises, would not be suitable for a client with muscular dystrophy who is experiencing awkwardness and clumsiness. Choice C, providing pain medication, may address the symptom but does not directly address the issue of reducing the need for walking. Choice D, applying a heating pad, may provide temporary relief but does not address the underlying issue of mobility and fall prevention.

Correct Answer: B

Rationale: The correct answer is B. The presence of a new murmur in a client with atrial fibrillation may indicate a valvular problem or other complications, requiring immediate reporting. A heart rate of 58 beats per minute is within the normal range for some individuals with atrial fibrillation, so it is not an immediate concern. An INR of 2.5 is within the therapeutic range for a client on warfarin, indicating appropriate anticoagulation. A blood pressure of 110/70 mmHg is also within the normal range and does not pose an immediate threat to the client's health.

Correct Answer: C

Rationale: Administering insulin is the most important intervention in managing diabetic ketoacidosis. In DKA, there is a lack of insulin leading to hyperglycemia and ketosis. Insulin administration helps to reduce blood glucose levels and correct metabolic acidosis, which are crucial in treating DKA. Administering intravenous fluids helps with dehydration, monitoring urine output is important to assess renal function, but the priority is addressing the underlying cause of DKA by administering insulin. Administering 50% dextrose IV push is incorrect as it would further elevate blood glucose levels, which is contraindicated in DKA.

Correct Answer: B

Rationale: The correct answer is B: Administer thiamine as prescribed. Administering thiamine is crucial in clients with a history of alcoholism to prevent Wernicke's encephalopathy, which is characterized by confusion, ataxia, and nystagmus. Monitoring for signs of alcohol withdrawal (choice A) is important but not the priority. Providing a quiet environment (choice C) and initiating fall precautions (choice D) are important interventions, but administering thiamine takes precedence due to the risk of Wernicke's encephalopathy.