|
Ankle Brachial Index
(ABI):
Clinical application: decisions about use of compression, and use
of sharp debridement. Prognostic for wound healing.
Ankle SBP / Brachial SBP
Must have a doppler US to hear SBP at the dorsalis pedis artery.
Cuff goes around calf).
For normal persons, leg SBP is higher than brachial SBP.
| 0.9
- 1.2 |
Normal |
| 0.7
- 0.9 |
Mild
arterial disease (intermittent claudication pain) |
| 0.5
- 0.7 |
Moderate
arterial disease (claudication pain at rest) |
| <
0.5 |
Severe
arterial disease (risk of gangrene) |
Falsely high values that
are > 1.2 may indicate arteriosclerosis (diabetes), because
the vessels are calcified and non-compressible by the BP cuff. Referral
for other testing would be appropriate.
|
