{"uid":"cap_9Ra4KxyNybOane4HnK1o-","slug":"arc-hbr-high-bleeding-risk-calculator-urban-2019-table-3-c3915bd7","name":"ARC-HBR High Bleeding Risk Calculator (Urban 2019 Table 3)","description":"ARC-HBR (Urban 2019 Table 3). High bleeding risk at PCI iff ≥1 major or ≥2 minor. Binary; no weighted point score. Caller-assigned booleans; magent does not assay labs or read NIHSS. Mutex (400): severe vs moderate CKD, Hb <11 vs mild anemia, major vs minor bleed, moderate-severe stroke <6 mo vs any other ischemic stroke. Not a DAPT duration. Not a medical device.","url":"https://api.magentlab.com/api/calc/arc_hbr","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":["anticipated_long_term_oac","severe_or_esrd_ckd","hemoglobin_lt_11","spontaneous_bleed_major","thrombocytopenia_lt_100","chronic_bleeding_diathesis","cirrhosis_with_portal_hypertension","active_malignancy_12mo","previous_spontaneous_ich","traumatic_ich_12mo","bavm","moderate_severe_ischemic_stroke_6mo","nondeferrable_major_surgery_dapt","recent_major_surgery_or_trauma_30d","age_ge_75","moderate_ckd","mild_anemia","spontaneous_bleed_minor","long_term_nsaid_or_steroid","any_ischemic_stroke_not_major"],"properties":{"bavm":{"type":"boolean","description":"Brain arteriovenous malformation as assigned by the caller (Urban 2019 Table 3 major). true or false. magent does not read imaging."},"age_ge_75":{"type":"boolean","description":"Age ≥75 years as assigned by the caller (Urban 2019 Table 3 minor). true or false. magent does not take a numeric age."},"mild_anemia":{"type":"boolean","description":"Mild anemia (hemoglobin 11–12.9 g/dL in men or 11–11.9 g/dL in women) as assigned by the caller (Urban 2019 Table 3 minor). Mutually exclusive with hemoglobin_lt_11. true or false. magent does not take sex or hemoglobin numbers."},"moderate_ckd":{"type":"boolean","description":"Moderate CKD (eGFR 30–59 mL/min) as assigned by the caller (Urban 2019 Table 3 minor). Mutually exclusive with severe_or_esrd_ckd. true or false. magent does not assay creatinine or compute eGFR."},"hemoglobin_lt_11":{"type":"boolean","description":"Hemoglobin <11 g/dL as assigned by the caller (Urban 2019 Table 3 major). Mutually exclusive with mild_anemia. true or false. magent does not assay hemoglobin."},"severe_or_esrd_ckd":{"type":"boolean","description":"Severe or end-stage CKD (eGFR <30 mL/min) as assigned by the caller (Urban 2019 Table 3 major). Mutually exclusive with moderate_ckd. true or false. magent does not assay creatinine or compute eGFR."},"traumatic_ich_12mo":{"type":"boolean","description":"Previous traumatic intracranial hemorrhage within the past 12 months as assigned by the caller (Urban 2019 Table 3 major). true or false. magent does not read imaging."},"active_malignancy_12mo":{"type":"boolean","description":"Active malignancy (excluding nonmelanoma skin cancer) as assigned by the caller: diagnosis within 12 months and/or ongoing treatment (Urban 2019 Table 3 major). true or false. magent does not diagnose cancer."},"spontaneous_bleed_major":{"type":"boolean","description":"Spontaneous bleeding requiring hospitalization or transfusion in the past 6 months, or recurrent at any time, as assigned by the caller (Urban 2019 Table 3 major). Mutually exclusive with spontaneous_bleed_minor. true or false."},"spontaneous_bleed_minor":{"type":"boolean","description":"Spontaneous bleeding requiring hospitalization or transfusion within the past 12 months that does not meet the major criterion, as assigned by the caller (Urban 2019 Table 3 minor). Mutually exclusive with spontaneous_bleed_major. true or false."},"thrombocytopenia_lt_100":{"type":"boolean","description":"Baseline platelet count <100×10^9/L before PCI as assigned by the caller (Urban 2019 Table 3 major). true or false. magent does not assay platelets."},"previous_spontaneous_ich":{"type":"boolean","description":"Previous spontaneous intracranial hemorrhage at any time as assigned by the caller (Urban 2019 Table 3 major). true or false. magent does not read imaging."},"anticipated_long_term_oac":{"type":"boolean","description":"Anticipated use of long-term oral anticoagulation as assigned by the caller (Urban 2019 Table 3 major). Paper footnote excludes vascular-protection doses; that exclusion is a limitation, not a separate param. true or false. magent does not prescribe anticoagulation."},"chronic_bleeding_diathesis":{"type":"boolean","description":"Chronic bleeding diathesis as assigned by the caller (Urban 2019 Table 3 major). true or false. magent does not diagnose a coagulopathy."},"long_term_nsaid_or_steroid":{"type":"boolean","description":"Long-term oral NSAID or steroid use (planned daily intake ≥4 days per week) as assigned by the caller (Urban 2019 Table 3 minor). true or false. magent does not prescribe NSAIDs or steroids."},"any_ischemic_stroke_not_major":{"type":"boolean","description":"Any ischemic stroke at any time that does not meet the major stroke criterion, as assigned by the caller (Urban 2019 Table 3 minor). Mutually exclusive with moderate_severe_ischemic_stroke_6mo. true or false. magent does not assign NIHSS."},"nondeferrable_major_surgery_dapt":{"type":"boolean","description":"Nondeferrable major surgery on DAPT as assigned by the caller (Urban 2019 Table 3 major). true or false. magent does not schedule surgery."},"cirrhosis_with_portal_hypertension":{"type":"boolean","description":"Liver cirrhosis with portal hypertension as assigned by the caller (Urban 2019 Table 3 major). true or false. magent does not diagnose cirrhosis."},"recent_major_surgery_or_trauma_30d":{"type":"boolean","description":"Recent major surgery or major trauma within 30 days before PCI as assigned by the caller (Urban 2019 Table 3 major). true or false. magent does not date the event."},"moderate_severe_ischemic_stroke_6mo":{"type":"boolean","description":"Moderate or severe ischemic stroke (NIHSS ≥5 on presentation) within the past 6 months as assigned by the caller (Urban 2019 Table 3 major). Mutually exclusive with any_ischemic_stroke_not_major. true or false. magent does not assign NIHSS."}}}},"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_izKmh9h57S9OeKHs7vH4v","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":"Evaluates ARC-HBR (Academic Research Consortium - High Bleeding Risk) criteria for PCI patients: classifies as high bleeding risk if ≥1 major or ≥2 minor criteria are met, per Urban 2019 Table 3.","exampleAgentPrompt":"For my patient scheduled for PCI who is 78 years old with moderate CKD (eGFR 35), on long-term OAC, with a prior spontaneous intracranial hemorrhage, and currently on chronic NSAIDs — can you run the ARC-HBR assessment and tell me if they meet high bleeding risk criteria under the Urban 2019 Table 3 definition?","exampleUseCases":[{"title":"Pre-PCI bleeding risk triage","prompt":"My interventional cardiology patient is going for PCI next week — they have hemoglobin of 10.2 g/dL, a history of brain AVM, and active cancer diagnosed 8 months ago. No other criteria apply. Run the ARC-HBR Urban 2019 check and tell me if they're high bleeding risk and which major criteria triggered it."},{"title":"Antiplatelet planning for elderly patient","prompt":"I have a 76-year-old post-PCI patient with mild anemia (Hb 11.8 g/dL in a man), moderate CKD (eGFR 45), and on long-term steroids — no major bleeding history or other flags. Can you check if they meet ARC-HBR high bleeding risk based on their minor criteria count?"},{"title":"Cardiology EMR risk flag automation","prompt":"For this patient chart: anticipated long-term OAC yes, severe CKD no, moderate CKD no, hemoglobin under 11 no, mild anemia no, active malignancy yes (diagnosed 6 months ago), all other ARC-HBR Table 3 criteria false — can you compute the ARC-HBR classification and return whether they are high bleeding risk at PCI?"}],"resultDescription":"Returns a binary high-bleeding-risk flag (true/false) indicating whether the patient meets ARC-HBR criteria (≥1 major or ≥2 minor criteria from Urban 2019 Table 3), along with counts of major and minor criteria satisfied. Does not return a weighted point score or DAPT duration recommendation.","failureModes":["HTTP 400 (mutex violation): mutually exclusive fields both set to true — e.g. severe_or_esrd_ckd and moderate_ckd both true, or hemoglobin_lt_11 and mild_anemia both true, or major and minor bleed both true, or moderate_severe_ischemic_stroke_6mo and any_ischemic_stroke_not_major both true","Missing required boolean query parameters returns a validation error","All boolean fields must be explicitly provided; omission of required fields will cause a 400/422 error","Payment failure if x402 USDC micropayment of $0.005 is not completed before the request"],"whenToPreferThis":"Use this endpoint when you need a standards-compliant, auditable ARC-HBR binary classification per the Urban 2019 Table 3 consensus definition for a PCI patient, where the calling system has already resolved lab values (eGFR, hemoglobin, platelet count) and clinical facts into boolean criteria. Do not use if you need a continuous weighted score, DAPT duration guidance, a medical device decision, or if you expect the service to interpret raw lab values or imaging.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T07:14:30.068Z","isFirstParty":false}