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CAHP Score Calculator (Maupain 2016)
x402
CAHP Score Calculator (Maupain 2016) 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).
Calculates the CAHP (Cardiac Arrest Hospital Prognosis) nomogram score to predict poor neurological outcome after out-of-hospital cardiac arrest (OHCA).
Price / call$0.005
Success—
StatusUnknown
How this service works
Maupain 2016 CAHP nomogram after OHCA. Integer points from age, home vs public arrest, shockable vs non-shockable rhythm, no-flow min, low-flow min, epinephrine tertile (0 / 1-2 / >=3 mg), and arterial pH. Table 3: low <150, medium 150-200, high >200. Figure 2 caption total 177 reads 88% poor outcome. Not a withdrawal-of-care order. magent does not measure pH.
Output
Returns a CAHP nomogram total integer score computed from age, arrest location, rhythm, no-flow time, low-flow time, epinephrine tertile, and arterial pH. A score below 150 is low risk, 150–200 is medium risk, and above 200 is high risk for poor neurological outcome. At a total score of 177, approximately 88% of patients had a poor outcome.
Example use cases
Post-ROSC ICU triage decision
“My patient is 72 years old, arrested at home, non-shockable rhythm, 8 minutes no-flow, 30 minutes low-flow, got 2 mg epinephrine before ROSC, and admission pH is 7.10 — what's their CAHP score and risk category?”
ED cardiac arrest prognostication
“Can you compute the CAHP nomogram score for a 55-year-old who arrested in public, had a shockable rhythm, 3 minutes no-flow, 15 minutes low-flow, 1 mg epinephrine total, and arterial pH of 7.25?”
Research cohort risk stratification
“Score this OHCA case for the CAHP study: age 80, arrested at home, non-shockable, 10 minutes no-flow, 45 minutes low-flow, 5 mg epinephrine administered, arterial pH 6.95.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/cahpWhen to prefer
Use this endpoint when you need a validated, evidence-based nomogram score for predicting poor neurological outcomes in post-OHCA patients (Maupain 2016 CAHP). It is specifically suited for emergency department or ICU triage support, clinical research stratification, or decision-support systems where structured prognostication tools are needed. Not a substitute for clinical judgment or a withdrawal-of-care order.
Side effects
- Missing required query parameters returns a validation error
- Age or pH outside the accepted range (18–120 for age, 6.5–7.8 for pH) may be truncated or rejected
- Non-integer values for integer fields (age, no_flow_min, low_flow_min, epinephrine_mg) cause schema validation failure
- API returns 402 Payment Required if x402 payment header is not included
- Endpoint does not measure arterial pH — caller must supply measured lab value
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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