Rhabdomyolysis Diagnosis and Management

Laboratory Findings and Complications

Acute kidney injury develops when CK exceeds 75,000 IU/L in over 80% of crush syndrome patients, which would manifest as elevated creatinine, according to Praxis Medical Insights 1
Electrolyte derangements and metabolic acidosis can occur in severe cases, but are not universal findings, as noted in Pediatrics 2
Myoglobin measurement may be more sensitive than CK for early identification of acute kidney injury risk, as myoglobin peaks earlier in plasma, according to Praxis Medical Insights 1
In acute kidney injury settings, creatinine interpretation becomes complex because creatinine production falls due to reduced hepatic creatine synthesis while muscle injury increases creatinine release, as explained by Praxis Medical Insights 1

Monitor for development of complications through serial measurements of creatinine, electrolytes, and urinalysis for myoglobin, as recommended by Anaesthesia 3
Maintain urine pH >6.5 and hourly urine output monitoring in established cases, according to Anaesthesia 3