A client with massive trauma and possible spinal cord injury is admitted to the emergency department (ED). Which finding by the nurse will help confirm a diagnosis of neurogenic shock?

A. Cardiac monitor shows a pulse rate of 204: A markedly elevated heart rate is expected during the early burn-shock phase due to pain, stress, and circulating catecholamines. Although it indicates a hypermetabolic and hypovolemic state, it is not as specific for inadequate fluid resuscitation as reduced urine output, so it is not the most urgent finding.

B. Serous exudate is leaking from the burns: Plasma leakage from damaged capillaries is normal in the first 24–48 hours after a major burn. While this contributes to hypovolemia, its presence alone does not indicate a worsening condition and does not require immediate provider notification compared with signs of renal hypoperfusion.

C. Urine output is 20 mL for the past 2 hours: This extremely low output is a key indicator of inadequate renal perfusion during the resuscitation period. Clients with major burns should maintain 30–50 mL/hr to ensure the kidneys are receiving adequate circulation, making this the most critical finding to report promptly.

D. Blood pressure is 94/50 per arterial line: Borderline hypotension commonly occurs during early burn shock because of fluid shifts into the interstitial space. Although concerning, it is less reliable than urine output for assessing end-organ perfusion.

A. hypokalemia, hypernatremia, and hypoalbuminemia: Hypokalemia and hypernatremia are not expected early findings after a major burn. Potassium initially rises due to massive cell destruction, and sodium commonly falls because of fluid shifts into the interstitial space, making this pattern inconsistent with the emergent phase.

B. hyperkalemia, hypernatremia, and hyperalbuminemia: Although hyperkalemia is expected, hypernatremia is unlikely because sodium shifts into the tissues with extensive edema. Albumin levels usually fall due to increased capillary permeability and plasma protein loss, so hyperalbuminemia would not be seen.

C. hyperkalemia, hyponatremia, and metabolic alkalosis: The potassium and sodium patterns fit early burn physiology, but metabolic alkalosis does not. Massive fluid loss, hypoperfusion, and lactic acid accumulation commonly produce metabolic acidosis rather than alkalosis during the emergent period.

D. hyperkalemia, hyponatremia, and metabolic acidosis: This combination reflects typical early burn responses. Potassium rises from cellular lysis, sodium falls due to third spacing, and acidosis develops from tissue hypoxia and anaerobic metabolism.