Correct Answer: B

Rationale: The correct answer is to perform a quick assessment of the client's condition when the high-pressure alarm goes off on the ventilator. This assessment is crucial to determine the cause of the alarm and the client's current status. Option A is incorrect because disconnecting the client from the ventilator without assessing the situation can be harmful. Option C is incorrect as the nurse should first assess the client before seeking additional help. Option D is incorrect because resetting the alarm without understanding the underlying issue may lead to potential risks to the client.

Correct Answer: B

Rationale: A decrease in white blood cell count indicates that the infection is responding to treatment and the client's condition is improving. Monitoring the white blood cell count is a more objective indicator of the body's response to the antibiotics. Choices A, C, and D may also be positive signs, but they are less specific and may vary among individuals. Respiratory rate alone may not be sufficient to indicate improvement, as other factors can influence it. Energy levels and cough characteristics are subjective and may not always correlate with the effectiveness of antibiotic treatment.

Correct Answer: B

Rationale: The correct answer is B: Assess for signs of hypocalcemia. After a thyroidectomy, monitoring for hypocalcemia is crucial because damage to the parathyroid glands during surgery can result in low calcium levels, which may cause life-threatening complications. Monitoring respiratory rate and rhythm (choice A) is important but not the most critical in this situation. Monitoring for elevated body temperature (choice C) is less of a priority post-thyroidectomy. Checking blood pressure every 30 minutes (choice D) is not as vital as monitoring for hypocalcemia in this context.

Correct Answer: C

Rationale: In sepsis with multi-organ failure, monitoring intake and output is critical to assess renal function and fluid balance, as organ failure can cause fluid shifts and decreased kidney function. Antibiotics are essential to treat the infection, but monitoring intake and output provides real-time insight into the client's status, helping to detect early signs of worsening organ function. Early ambulation and blood glucose monitoring are important aspects of care but are not as crucial as maintaining strict intake and output in this situation.

Correct Answer: B

Rationale: Antibiotic ointment is ineffective against athlete's foot, which is a fungal infection. The nurse should instruct the mother to stop using the ointment and ensure the feet are dried properly, as moisture exacerbates fungal infections. Applying a different antifungal medication is a valid option, but addressing the moisture issue by drying the feet completely is the immediate priority. Continuing to use the antibiotic ointment or reapplying it for a longer period will not treat the fungal infection effectively.