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Morrow TIMI Risk Index Calculator
x402
Morrow TIMI Risk Index 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 Morrow InTIME-II TIMI risk index (HR × (age/10)² / SBP) and returns the patient's published risk group among the five standard categories
Price / call$0.005
Success—
StatusUnknown
How this service works
Morrow InTIME-II TIMI risk index: heart rate × (age/10)^2 / systolic BP, with the five published groups (≤12.5, >12.5–17.5, >17.5–22.5, >22.5–30, >30). Deterministic published arithmetic with citation; not a reperfusion decision.
Output
Returns the computed TIMI risk index numeric value (HR × (age/10)² / SBP) and the corresponding Morrow InTIME-II published risk group (one of: ≤12.5, >12.5–17.5, >17.5–22.5, >22.5–30, >30), along with a citation to the original Morrow 2001 derivation. Flags if inputs fall outside the derivation cohort ranges. Does not produce a reperfusion recommendation.
Example use cases
STEMI triage risk classification
“I have a STEMI patient who is 72 years old, heart rate 102 bpm, and systolic BP 98 mmHg — what is their TIMI risk index and which risk group does that put them in?”
Automated EMR risk documentation
“For our admission note, compute the Morrow InTIME-II TIMI risk index for a 55-year-old with a heart rate of 76 and systolic blood pressure of 140, and record the risk group.”
Retrospective cohort risk scoring
“I need to score a patient from a case review: age 80, admission HR 95, systolic BP 105 — give me their TIMI risk index value and the corresponding published risk group.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/timi_risk_indexWhen to prefer
Use this endpoint when you need a deterministic, citation-backed TIMI risk index calculation per the Morrow 2001 InTIME-II formula without building the arithmetic yourself. Prefer it over general LLM reasoning for reproducible clinical scoring that must match published group thresholds exactly. Not a substitute for clinical judgment or a reperfusion decision tool.
Side effects
- Missing required parameters (age, heart_rate_bpm, or systolic_mm_hg) returns a validation error
- Age outside 18–120 range rejected
- Heart rate outside 30–220 or SBP outside 50–250 rejected
- Division by zero if SBP is zero (rejected by schema minimum)
- Inputs outside Morrow 2001 derivation ranges (HR <50 or >150, SBP <60 or >200) may return a warning flag but still compute
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"path": "/api/calc/timi_risk_index",
"count": 2,
"items": [
{
"formula": "timi_risk_index",
"citation": {
"id": "morrow-2001",
"doi": "10.1016/S0140-6736(01)06649-1",
"title": "A simple risk index for rapid initial triage of patients with ST-elevation myocardial infarction: an InTIME II substudy",
"source": "Lancet. 2001;358(9293):1571-1575",
"authors": "Morrow DA, Antman EM, Giugliano RP, et al."
},
"age_years": 65,
"disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
"risk_group": 4,
"heart_rate_bpm": 80,
"systolic_mm_hg": 120,
"timi_risk_index": 28.2,
"formula_expression": "timi_risk_index = heart_rate_bpm * (age_years / 10)^2 / systolic_mm_hg"
},
{
"formula": "timi_risk_index",
"citation": {
"id": "morrow-2001",
"doi": "10.1016/S0140-6736(01)06649-1",
"title": "A simple risk index for rapid initial triage of patients with ST-elevation myocardial infarction: an InTIME II substudy",
"source": "Lancet. 2001;358(9293):1571-1575",
"authors": "Morrow DA, Antman EM, Giugliano RP, et al."
},
"age_years": 65,
"disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
"risk_group": 4,
"heart_rate_bpm": 80,
"systolic_mm_hg": 120,
"timi_risk_index": 28.2,
"formula_expression": "timi_risk_index = heart_rate_bpm * (age_years / 10)^2 / systolic_mm_hg"
}
]
}
}Tags
x402
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