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PRIEST Clinical Severity Score Calculator
x402
PRIEST Clinical Severity 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 2026-09-15).
Computes the Goodacre 2021 PRIEST score from 10 vital-sign and clinical parameters to stratify COVID-19/acute illness patients into low vs elevated adverse-outcome risk
Price / call$0.005
Success—
StatusUnknown
How this service works
Goodacre 2021 PRIEST: NEWS2 Chart 1 Scale 1 vitals (RR, SpO2 Scale 1 only, oxygen +2, temperature, SBP, HR) + alertness (alert 0; confused_or_not_alert 3) + sex (male 1) + age (16–49→0, 50–65→2, 66–80→3, >80→4) + performance 0–4. Max 29. low_adverse_outcome_risk iff score ≤4. Not NEWS2, not 4C, not an admission order.
Output
Returns the integer PRIEST total score (0–29) and a risk flag indicating whether the patient meets the low_adverse_outcome_risk threshold (score ≤4) or is at elevated risk, based on the Goodacre 2021 scoring algorithm using NEWS2 Chart 1 Scale 1 vitals plus sex, age band, alertness, and performance status.
Example use cases
ED triage risk stratification
“I have a 58-year-old female presenting to the ED — she's alert, not on supplemental oxygen, respiratory rate 18, SpO2 96%, heart rate 88, systolic BP 130, temperature 38.5°C, performance status 1. What's her PRIEST score and is she low risk?”
COVID-19 home monitoring decision
“Can you calculate the PRIEST score for an 82-year-old male at home who seems confused, is on supplemental oxygen, breathing 26 times a minute, SpO2 at 91%, heart rate 112, systolic BP 95, temperature 36.8°C, and performance status 3 — do the numbers suggest he needs hospital-level care?”
Clinical audit severity benchmarking
“Score this patient for our clinical audit: 45-year-old female, alert, no supplemental oxygen, respiratory rate 14, SpO2 98%, heart rate 76, systolic BP 145, temperature 37.2°C, performance status 0 — give me the PRIEST total and risk category.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/priestWhen to prefer
Use this endpoint when you need a validated, single-number acute illness severity score for COVID-19 or undifferentiated emergency patients following the Goodacre 2021 PRIEST rule, especially when the goal is to identify patients safe for community management (score ≤4). Prefer this over NEWS2 when you need the full PRIEST composite including age, sex, and performance status. Do not use as a substitute for NEWS2-only scoring, 4C Mortality Score, or as an admission order.
Side effects
- Missing required query parameter returns validation error
- Age outside 16–120 range rejected
- SpO2 outside 50–100 range rejected
- Temperature outside 30.0–45.0°C range rejected
- Heart rate outside 30–220 bpm range rejected
- Systolic BP outside 0–300 mmHg range rejected
- Invalid enum value for sex or alertness returns error
- Payment not included or insufficient USDC results in 402 response
- SpO2 Scale 2 (for hypercapnic patients) not supported — only Scale 1 implemented
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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