To determine the ABI, the systolic hypertension (the very best quantity of the hypertension measurement) from the ankle is split through the systolic blood pressure from the arm.  The most typical reason for PVD is atherosclerosis. Here is the buildup of plaque inside the artery wall. Plaque decreases the quantity https://www.sgvascularctr.com/types-of-treatments-for-vascular-diseases/