McMahon Score (Rhabdomyolysis)

McMahon Score (Rhabdomyolysis – Risk of RRT or Death)

Estimates the in-hospital risk of death or need for renal replacement therapy in adults hospitalized with rhabdomyolysis, from eight admission variables, to guide early renal-protective therapy; intended for patients not already on dialysis.

Age (years)

Sex

Male Female

Initial serum creatinine (mg/dL)

Initial serum calcium < 7.5 mg/dL?

Initial CPK > 40,000 U/L?

Cause is seizures, syncope, exercise, statins, or myositis?

Initial serum phosphate (mg/dL)

Initial serum bicarbonate < 19 mEq/L?