{"uid":"cap_jiMjyTS_MHuNyrmW9Xjdf","slug":"morrow-timi-risk-index-calculator-37a02045","name":"Morrow TIMI Risk Index Calculator","description":"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.","url":"https://api.magentlab.com/api/calc/timi_risk_index","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"queryParams":{"type":"object","required":["age","heart_rate_bpm","systolic_mm_hg"],"properties":{"age":{"type":"integer","description":"Age in years (18-120)."},"heart_rate_bpm":{"type":"integer","description":"Admission heart rate in beats per minute (integer 30-220). Morrow 2001 excluded HR <50 or >150 from derivation; magent still computes the index."},"systolic_mm_hg":{"type":"number","description":"Admission systolic blood pressure in mm Hg (50-250). Morrow 2001 excluded SBP <60 or >200 from derivation; magent still computes the index."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"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"}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Bey5VnrV8LLJqrNHFToXE","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"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","exampleAgentPrompt":"Calculate the TIMI risk index for a 68-year-old patient admitted with a heart rate of 88 bpm and a systolic blood pressure of 115 mmHg, and tell me which of the five Morrow risk groups they fall into.","exampleUseCases":[{"title":"STEMI triage risk classification","prompt":"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?"},{"title":"Automated EMR risk documentation","prompt":"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."},{"title":"Retrospective cohort risk scoring","prompt":"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."}],"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T01:05:23.555Z","isFirstParty":false}