{"uid":"cap__HiScLYnxaeUNZDsNQwFl","slug":"travis-1996-ulcerative-colitis-severity-day-3-iv-steroids-c0dd892e","name":"Travis 1996 Ulcerative Colitis Severity (Day 3 IV Steroids)","description":"Travis 1996 day-3 of intravenous steroids for severe ulcerative colitis. travis_high is true when stools_per_day > 8, or when stools_per_day is 3 to 8 inclusive and crp_mg_l > 45. Stools 8 with CRP 45 is not high. Stools 2 with high CRP is not high. Both parameters are required. Not a colectomy order, not the Ho score, and not Truelove and Witts. magent does not count stools or measure CRP.","url":"https://api.magentlab.com/api/calc/travis","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":["stools_per_day","crp_mg_l"],"properties":{"crp_mg_l":{"type":"number","description":"C-reactive protein in mg/L (0-500), not mg/dL. Travis 1996 CRP arm is crp_mg_l > 45 when stools_per_day is 3 to 8 inclusive. CRP = 45 is not high on that arm. magent does not assay CRP."},"stools_per_day":{"type":"integer","description":"Number of stools (motions) per day as assigned by the caller (integer 0-40). Travis 1996 high is stools_per_day > 8, or stools_per_day 3 to 8 inclusive with CRP > 45 mg/L. Both parameters are required. magent does not count stools."}}}},"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_BIbOZ7z8JaIjQoB2EqxVR","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":"Calculates the Travis 1996 day-3 intravenous steroid response criterion for severe ulcerative colitis, returning whether the patient is classified as 'travis_high' risk based on stool frequency and CRP.","exampleAgentPrompt":"My UC patient on day 3 of IV steroids is having 6 stools per day and their CRP is 52 mg/L — can you run the Travis 1996 criterion and tell me if they're classified as high risk?","exampleUseCases":[{"title":"Day-3 steroid response triage in severe UC","prompt":"My patient has severe ulcerative colitis and is on day 3 of IV steroids. They're having 9 stools per day and CRP is 30 mg/L. Can you apply the Travis 1996 criterion to see if they fall into the high-risk category?"},{"title":"Borderline CRP and stool count classification","prompt":"I need to know if a UC patient with 5 stools per day and a CRP of 47 mg/L qualifies as Travis high by the 1996 criterion — can you check that for me?"},{"title":"Confirming low-risk Travis classification","prompt":"For a UC patient on day 3 of IV steroids with 4 stools per day and CRP of 40 mg/L, does the Travis 1996 score classify them as high risk or not?"}],"resultDescription":"Returns a boolean 'travis_high' flag: true if stools_per_day > 8, or if stools_per_day is between 3 and 8 inclusive AND crp_mg_l > 45; false otherwise. Does not produce a colectomy recommendation, a Ho score, or a Truelove and Witts classification.","failureModes":["Missing required parameter (stools_per_day or crp_mg_l) returns an error","crp_mg_l provided in mg/dL instead of mg/L yields incorrect classification","Non-integer stools_per_day rejected by schema","Values outside valid ranges (stools 0-40, CRP 0-500) may be rejected or produce unexpected results"],"whenToPreferThis":"Use this endpoint specifically when you need the Travis 1996 day-3 IV steroid response criterion for severe ulcerative colitis, given stool count and CRP in mg/L. Prefer this over general IBD scoring when the clinical question is precisely whether a patient meets the Travis high-risk threshold on day 3 of intravenous steroids. Do not use for Truelove and Witts classification, Ho score, or colectomy decision support.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T13:10:36.325Z","isFirstParty":false}