{"uid":"cap__9UXS4PKYk4WpufFG8nle","slug":"vancouver-chest-pain-rule-christenson-2006-cc5661c4","name":"Vancouver Chest Pain Rule (Christenson 2006)","description":"Christenson 2006 Vancouver Chest Pain Rule. early_discharge_eligible is true when the initial ECG is not abnormal, 2-hour troponin is not elevated, there is no prior ACS or nitrate use, and either palpation reproduces pain or age is under 40 without radiation to neck, arm, or jaw. Age 40 is not the age-history path. magent does not interpret ECGs or assay troponin. Not the 2014 age-50 variant. Not a medical device and not a discharge order.","url":"https://api.magentlab.com/api/calc/vancouver_chest_pain","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","abnormal_initial_ecg","troponin_2h_elevated","prior_acs_or_nitrate","palpation_reproduces_pain","pain_radiates_neck_jaw_arm"],"properties":{"age":{"type":"integer","description":"Age in years (integer 18-120). The 2006 age-history path requires age under 40 when palpation does not reproduce pain. Age 40 is not that path (Christenson 2006; not the later age-50 cutoff)."},"abnormal_initial_ecg":{"type":"boolean","description":"Caller-assigned abnormal initial ECG as used in Christenson 2006 (true blocks early discharge). T-wave flattening was the only acceptable ST-T abnormality in that paper. true or false. magent does not interpret an ECG."},"prior_acs_or_nitrate":{"type":"boolean","description":"Prior ACS (MI or angina) or nitrate use as assigned by the caller (Christenson 2006 prior ischemic chest pain / nitroglycerin node). true or false. true blocks early discharge."},"troponin_2h_elevated":{"type":"boolean","description":"Caller-assigned 2-hour troponin at or above the institutional cutoff. true or false. true blocks early discharge. magent does not assay troponin or CK-MB."},"palpation_reproduces_pain":{"type":"boolean","description":"Chest pain reproduced by palpation as assigned by the caller. true or false. When ECG, 2-hour troponin, and prior ACS/nitrate are clear, true is early-discharge eligible regardless of age or radiation. magent does not palpate the chest."},"pain_radiates_neck_jaw_arm":{"type":"boolean","description":"Pain radiates to neck, arm, or jaw as assigned by the caller (Christenson 2006). true or false. On the age-history path (palpation false), true blocks early discharge. magent does not take a pain history."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"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_DUB8ANb-CYFPKmCgjnJDW","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":"Applies the Christenson 2006 Vancouver Chest Pain Rule to determine if a patient is eligible for early ED discharge based on ECG, troponin, history, and physical exam findings.","exampleAgentPrompt":"Apply the Vancouver Chest Pain Rule (Christenson 2006) to a 35-year-old patient whose initial ECG is normal, 2-hour troponin is not elevated, no prior ACS or nitrate use, palpation does not reproduce the pain, and pain does not radiate to the neck, jaw, or arm — is this patient eligible for early discharge?","exampleUseCases":[{"title":"Low-risk chest pain early discharge check","prompt":"I have a 28-year-old ED patient with chest pain. The initial ECG is normal, 2-hour troponin is not elevated, no prior ACS or nitrate use, palpation reproduces the pain, and it doesn't radiate to the neck, jaw, or arm. Run the Vancouver Chest Pain Rule and tell me if they qualify for early discharge."},{"title":"Higher-risk patient with radiation to arm","prompt":"Can you apply the 2006 Vancouver Chest Pain Rule to a 45-year-old patient whose initial ECG is not abnormal, 2-hour troponin is not elevated, no prior ACS or nitrate use, palpation does not reproduce pain, but the pain does radiate to the arm? Is early discharge eligible?"},{"title":"Prior nitrate use blocking discharge","prompt":"Run the Vancouver Chest Pain Rule on a 38-year-old: initial ECG is normal, 2-hour troponin is not elevated, but the patient has prior nitrate use, palpation does not reproduce pain, and there's no radiation to the neck, jaw, or arm — is early discharge indicated?"}],"resultDescription":"Returns a boolean field early_discharge_eligible indicating whether the patient meets the Christenson 2006 Vancouver Chest Pain Rule criteria for early ED discharge. The result reflects the logical pathway through ECG normality, 2-hour troponin status, prior ACS/nitrate history, palpation finding, patient age, and pain radiation — not a medical device output or discharge order.","failureModes":["Missing required query parameters returns a validation error","Age outside the integer range 18-120 may be rejected or produce undefined behavior","Ambiguous or miscoded boolean values for clinical flags lead to incorrect pathway traversal","Confusion with the 2014 age-50 variant may cause incorrect parameter use","Caller-assigned ECG or troponin flags that do not align with Christenson 2006 definitions may produce misleading results"],"whenToPreferThis":"Use this endpoint when you need to programmatically apply the original Christenson 2006 Vancouver Chest Pain Rule (not the later 2014 age-50 variant) for ED chest pain early discharge eligibility. Prefer this over manual rule application when integrating clinical decision support into an agent workflow where the caller has already interpreted the ECG, troponin, and history fields and simply needs the rule's logic applied consistently.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:58:16.373Z","isFirstParty":false}