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McMahon 2013 Rhabdomyolysis Score Calculator
x402
McMahon 2013 Rhabdomyolysis Score Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Computes the McMahon 2013 Table 3 rhabdomyolysis risk score from patient labs and clinical characteristics to estimate acute kidney injury risk
Price / call$0.005
Success—
StatusUnknown
How this service works
McMahon 2013 Table 3 rhabdomyolysis score: age ≤50→0, >50–≤70→1.5, >70–≤80→2.5, >80→3; female 1; Cr <1.4→0, 1.4–2.2→1.5, >2.2→3; Ca <7.5→2; CPK >40000→2; origin not seizure/syncope/exercise/statin/myositis→3; PO4 <4.0→0, 4.0–5.4→1.5, >5.4→3; HCO3 <19→2. Max 19. Caller-supplied labs and origin. Numeric total only; not a dialysis order.
Output
Returns a single numeric McMahon score (0–19 maximum) calculated by summing points assigned to age bracket, sex, creatinine level, calcium, CPK, rhabdomyolysis origin, phosphate, and bicarbonate values per McMahon 2013 Table 3. Higher scores indicate greater acute kidney injury risk. No dialysis orders or clinical recommendations are included.
Example use cases
ED rhabdomyolysis triage scoring
“I have a 74-year-old female in the ED with rhabdomyolysis — creatinine is 2.5 mg/dL, calcium 7.2 mg/dL, CPK 38000 U/L, phosphate 4.8 mg/dL, bicarbonate 17 mmol/L, and the cause was a seizure. What's her McMahon 2013 score?”
ICU rhabdomyolysis risk stratification
“Score my ICU patient using the McMahon rhabdomyolysis calculator: 83-year-old male, creatinine 1.9 mg/dL, calcium 8.0 mg/dL, CPK 45000 U/L, not a low-risk origin, phosphate 3.8 mg/dL, bicarbonate 21 mmol/L.”
Automated clinical documentation tool
“For a 55-year-old female patient with creatinine 1.2 mg/dL, calcium 7.8 mg/dL, CPK 20000 U/L, origin was statin use so low-risk, phosphate 4.2 mg/dL, and bicarbonate 22 mmol/L — compute her McMahon 2013 rhabdomyolysis risk score.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/mcmahonWhen to prefer
Use this endpoint when you need a validated, formulaic McMahon 2013 rhabdomyolysis severity score from caller-supplied laboratory values. Prefer it over manual calculation to avoid arithmetic errors and ensure consistent threshold application (e.g. strict greater-than vs greater-than-or-equal boundary enforcement per the original paper). It is appropriate for clinical workflow automation, documentation, and research pipelines where the score is needed programmatically, not as a standalone dialysis or treatment decision system.
Side effects
- Missing required lab parameters returns a validation error
- Out-of-range values (e.g. age <18 or >120, CPK <1 or >500000) are rejected
- Providing neither creatinine_mg_dl nor creatinine_umol_l results in an error
- Invalid sex enum value causes a bad request response
- Payment failure or missing x402 header returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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