A nurse is monitoring a client who has acute kidney injury. Which of the following laboratory findings should the nurse expect?

A. "If I stop sweating, I should call 911 or get to the Emergency Department quickly.” An absence of sweating can indicate heat stroke, a medical emergency.

B. "If this happens in the future, lying in cool water would be beneficial.” Cooling measures like cold baths, ice packs, and shade help reduce body temperature.

C. “Using salt tablets to replenish my electrolytes may lead to nausea and vomiting.” Salt tablets can irritate the stomach and cause nausea, vomiting, and hypernatremia.

D. "Drinking water is the best way to improve sodium intake.” While water helps with rehydration, it does not replace lost sodium. Excessive water intake without electrolytes can cause hyponatremia, leading to confusion, seizures, or coma. Electrolyte-containing drinks (e.g., sports drinks, oral rehydration solutions) are better choices.

A. The development of malignant hyperthermia: Malignant hyperthermia (MH) is a life-threatening reaction to certain anesthetics (e.g., succinylcholine, halothane). It causes rapid muscle breakdown, severe hyperthermia, tachycardia, muscle rigidity, and metabolic acidosis. Immediate treatment with IV dantrolene and cooling measures is required.

B. The development of fluid volume excess: Fluid overload may cause hypertension and pulmonary edema but does not cause sudden high fever.

C. The development of an allergic response to the pain medication: Drug allergies typically present with rash, itching, or anaphylaxis, not extreme fever.

D. The development of an infection. Post-op infections usually develop over several days, not immediately in PACU.