Emergency & Critical Care
CAHP Score Calculator
Cardiac Arrest Hospital Prognosis score for risk stratification after adult out-of-hospital cardiac arrest.
Patient information
Complete all fields to calculate the CAHP score and risk group.
CAHP score
— points
—
| Component | Applied calculation | Points |
|---|
Clinical reminder: A CAHP risk category estimates group-level risk of an unfavourable neurological outcome. Do not use it in isolation to determine an individual patient’s prognosis or to limit standard post-arrest care.
About this calculator
The CAHP score combines seven admission and resuscitation variables: age, arrest setting, initial rhythm, collapse-to-BLS time, BLS-to-ROSC time, admission arterial pH, and total pre-ROSC epinephrine dose.
- Low risk: score <150
- Intermediate risk: score 150–200
- High risk: score >200
Scoring reference: Maupain C, et al. The CAHP (Cardiac Arrest Hospital Prognosis) score: a tool for risk stratification after out-of-hospital cardiac arrest. Intensive Care Medicine. 2016. Formula and cut-offs reproduced from the published CAHP point model.
