Ankle-Brachial Index (ABI)

Ankle-Brachial Index (ABI)

An ABI test, or Ankle-Brachial Index, is a simple, non-invasive test that checks how well blood is flowing to your legs. It compares the blood pressure in your ankles to the blood pressure in your arms to screen for peripheral artery disease (PAD).

An ABI test may be ordered to:

  • Screen for peripheral artery disease (PAD)
  • Evaluate leg pain, cramping, or fatigue with walking
  • Investigate non-healing wounds or ulcers
  • Assess risk for circulation problems
  • Monitor known arterial disease
  • You lie flat and rest briefly before the test
  • Blood pressure cuffs are placed on your arms and ankles
  • A handheld Doppler device measures blood flow
  • The test usually takes 10–15 minutes

 

No. You may feel brief pressure from the cuffs, but the test is painless and does not involve needles or radiation.

  • Normal ABI suggests healthy blood flow to the legs
  • Low ABI may indicate narrowed or blocked arteries
  • Your provider will explain your results and whether additional testing or treatment is needed

Results are often available the same day and will be reviewed with you by your HVLC  provider.

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