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The ankle-brachial pressure index (ABPI) or ankle-brachial index (ABI) is the ratio of the blood pressure at the ankle to the blood pressure in the upper arm (brachium). ). Compared to the arm, lower blood pressure in the leg suggests blocked arteries due to peripheral artery dise
Ankle-brachial pressure index (ABPI) assesses peripheral vascular disease. It may however be unreliable in patients with calcified arteries in the calf (often diabetic patients) or those with extensive oedema, in which case toe pressure or Toe-brachial pressure index (TBPI) should be measured to aid in the diagnosis.
Blood pressure in toes can be measured using special equipment, and is often valuable in assessment of severe peripheral artery disease, in particular in patients with diabetes where measurement of ankle pressure / ABPI is often unreliable (because of local stiffening of arterial wall).
The equipment needed is a thermometer, a sphygmomanometer, and a watch. [8] Although a pulse can be taken by hand, ... (see Ankle brachial pressure index).
Vascular doctors and nurses may use special pads to ensure uniform higher pressure around the circumference of the ankle (to smooth out the irregular cross-sectional profile.) Self-prescription is reasonably safe assuming that the compression gradient is 15–20 mmHg, the ABPI (for both legs) is >1.0 and that the stockings fit correctly.
The ankle-brachial pressure index compares the systolic blood pressure of the ankle to the systolic blood pressure of the arm. A ratio that is outside of the range of 1-1.3 may indicate a disease of the vessels, such as peripheral arterial disease (the ankle-brachial index would be low). [1]
Ankle-brachial pressure index, a measure of the fall in blood pressure in the arteries supplying the legs; Association of the British Pharmaceutical Industry, the trade association for companies in the UK producing prescription medicines
This page was last edited on 26 December 2016, at 09:53 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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