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ABI Calculator API

Calculate the ankle-brachial index (ABI) from arm and ankle blood pressure readings to assess peripheral artery disease (PAD) risk and vascular health.

Endpoint

  • GET /api/v1/abi-calculator
  • POST /api/v1/abi-calculator/post

Parameters

Name Type Required In Description
arm_pressure number Yes Query/Body Highest arm (brachial) systolic pressure in mmHg.
right_ankle_pressure number No Query/Body Right ankle systolic pressure in mmHg.
left_ankle_pressure number No Query/Body Left ankle systolic pressure in mmHg.
lang string No Query Response language (en,es,de,fr,pt,ja,hi,ar).

Note: At least one ankle pressure (right or left) must be provided.

Why Use This Endpoint

  • Screen for peripheral artery disease (PAD) in clinical settings.
  • Assess vascular health and cardiovascular risk.
  • Monitor treatment effectiveness for vascular conditions.
  • Enable early detection of circulatory problems.

Get Started

Request Example

curl -X GET "https://api.hefitapi.com/api/v1/abi-calculator?arm_pressure=130&right_ankle_pressure=120&left_ankle_pressure=125&lang=en" \
  -H "X-API-Key: YOUR_API_KEY"

curl -X POST "https://api.hefitapi.com/api/v1/abi-calculator/post?lang=en" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: YOUR_API_KEY" \
  -d '{"arm_pressure":130,"right_ankle_pressure":120,"left_ankle_pressure":125}'

Response Example

Info

The response example below is for demonstration purposes only. Make a live request to this endpoint to receive the full, real-time, and potentially richer JSON structure.

{
  "right_abi": {
    "value": 0.92,
    "band": "acceptable",
    "band_label": "Acceptable",
    "interpretation": "Borderline - may indicate early vascular changes",
    "recommendation": "Monitor and assess cardiovascular risk factors"
  },
  "left_abi": {
    "value": 0.96,
    "band": "acceptable",
    "band_label": "Acceptable",
    "interpretation": "Borderline - may indicate early vascular changes",
    "recommendation": "Monitor and assess cardiovascular risk factors"
  },
  "arm_pressure_mmHg": 130,
  "risk_summary": {
    "primary_band": "acceptable",
    "primary_band_label": "Acceptable",
    "vascular_risk_signal": "Borderline vascular health",
    "priority_level": "Moderate"
  },
  "asymmetry_index": {
    "abi_range_delta": 0.04,
    "interpretation": "Symmetric readings"
  },
  "action_plan": ["Assess cardiovascular risk factors", "Encourage regular physical activity", "Monitor blood pressure"],
  "prevention_focus": ["Smoking cessation if applicable", "Healthy diet", "Regular exercise"],
  "escalation_flags": ["Refer if ABI drops below 0.9"],
  "_enterprise": {
    "client": "Acme Health",
    "plan": "pro",
    "request_id": "2c8d9bd88b6f2f19",
    "quota": 120,
    "usage_tracking": true
  },
  "_api_metadata_": {
    "endpoint_name": "abi_calculator",
    "response_language": "en"
  }
}

Product Value

Essential for cardiovascular screening platforms, vascular health assessments, and preventive care applications.

Note

At least one ankle pressure measurement is required. ABI values are interpreted as: >1.4 (non-compressible), 1.0-1.4 (normal), 0.9-1.0 (acceptable/borderline), 0.8-0.9 (mild PAD), 0.5-0.8 (moderate PAD), <0.5 (severe PAD).