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===Ankle-brachial index (ABI)=== | ===Ankle-brachial index (ABI)=== | ||
*How to measure: | *How to measure: | ||
# | *#Position patient supine | ||
# | *#Measure SBP from both brachial arteries using cuff and handheld Doppler over the AC fossa | ||
# | *#Measure SBP from both DP and PT arteries using cuff placed just proximal to the malleoli with Doppler over artery (5-8% of normal patients have absent DP pulse) | ||
# | *#Calculate ABI on each leg by taking the highest ankle SBP (between DP and PT) on that leg divided by the highest brachial SBP and record to 2 decimal places | ||
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Revisión del 13:24 3 feb 2017
Ankle-brachial index (ABI)
- How to measure:
- Position patient supine
- Measure SBP from both brachial arteries using cuff and handheld Doppler over the AC fossa
- Measure SBP from both DP and PT arteries using cuff placed just proximal to the malleoli with Doppler over artery (5-8% of normal patients have absent DP pulse)
- Calculate ABI on each leg by taking the highest ankle SBP (between DP and PT) on that leg divided by the highest brachial SBP and record to 2 decimal places
| ABI | Meaning |
| <0.40 | Severe occlusion |
| 0.40–0.69 | Moderate occlusion |
| 0.70–0.90 | Mild occlusion |
| 0.91–1.30 | Normal |
| >1.30 | Poorly compressible/calcified vessels |