Ankle-Brachial pressure index

Ankle-Brachial Pressure Index (ABPI)
Highest brachial systolic pressure	mmHg
Ankle systolic pressure	mmHg

Ankle-Brachial Pressure Index (ABPI)
ABPI=Systolic ankle pressure/Systolic brachial pressure
Normal ABPI ranges from 1.0 — 1.4
Values above 1.4 suggest a noncompressible calcified vessel.
A value below 0.9 is considered diagnostic of perpheral arterial disease(PAD). Values less than 0.5 suggest severe PAD.
Treadmill tests (6 minute) are sometimes used to increase ABPI sensitivity A slight drop in your ABPI with exercise means that the person probably has PAD.

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