Health

HAS-BLED Score (Major Bleeding Risk)

Calculate the HAS-BLED score to estimate major bleeding risk in patients on oral anticoagulation (most commonly combined with CHA₂DS₂-VASc in atrial fibrillation). Each component scores 1 point: Hypertension (uncontrolled, systolic BP >160), Abnormal renal function (dialysis/transplant/Cr >2.26 mg/dL), Abnormal liver function, prior Stroke, prior major Bleeding/predisposition, Labile INR (TTR <60% on warfarin), Elderly (age >65), Drugs (antiplatelet/NSAID), Alcohol (≥8 drinks/week). Range 0–9 (renal/liver and drugs/alcohol can each contribute up to 2). Interpretation: 0 low, 1–2 moderate, ≥3 high risk — regular review and correct reversible factors; a high score alone does NOT justify withholding anticoagulation. Derived from Pisters 2010 (Chest) and the 2023 ACC/AHA/ACCP/HRS AF guideline. The 'labile INR' criterion mainly applies to warfarin users; predictive value is lower for DOACs. Not medical advice.

json· JSON resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/has-bled-score' \
  -H 'Content-Type: application/json' \
  -d '{"hypertension":true,"renal":false,"liver":false,"stroke":false,"bleeding":false,"labileInr":true,"elderly":true,"drugs":true,"alcohol":false}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/has-bled-score

Parameters

Name	Type	Required	Description
hypertension	checkbox	No	Uncontrolled hypertension, systolic BP > 160 mmHg. +1.
renal	checkbox	No	Chronic dialysis, renal transplant, or serum Cr > 2.26 mg/dL (>200 µmol/L). +1.
liver	checkbox	No	Chronic hepatic disease, or bilirubin > 2× ULN with AST/ALT/ALP > 3× ULN. +1.
stroke	checkbox	No	Prior stroke history. +1.
bleeding	checkbox	No

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-has-bled-score": {
      "name": "has-bled-score",
      "description": "Calculate the HAS-BLED score to estimate major bleeding risk in patients on oral anticoagulation (most commonly combined with CHA₂DS₂-VASc in atrial fibrillation). Each component scores 1 point: Hypertension (uncontrolled, systolic BP >160), Abnormal renal function (dialysis/transplant/Cr >2.26 mg/dL), Abnormal liver function, prior Stroke, prior major Bleeding/predisposition, Labile INR (TTR <60% on warfarin), Elderly (age >65), Drugs (antiplatelet/NSAID), Alcohol (≥8 drinks/week). Range 0–9 (renal/liver and drugs/alcohol can each contribute up to 2). Interpretation: 0 low, 1–2 moderate, ≥3 high risk — regular review and correct reversible factors; a high score alone does NOT justify withholding anticoagulation. Derived from Pisters 2010 (Chest) and the 2023 ACC/AHA/ACCP/HRS AF guideline. The 'labile INR' criterion mainly applies to warfarin users; predictive value is lower for DOACs. Not medical advice.",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=has-bled-score",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "has-bled-score",
    "arguments": {
  "hypertension": true,
  "renal": false,
  "liver": false,
  "stroke": false,
  "bleeding": false,
  "labileInr": true,
  "elderly": true,
  "drugs": true,
  "alcohol": false
}
  }
}