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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 disease (PAD).
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.
Ankle and toe systolic pressures comparison of value and limitations in arterial occlusive disease. Int Angiol, 1992;11(4):289-97. PMID 12593494 Kröger K, Stewen C, Santosa F, Rudofsky G. Toe pressure measurements compared to ankle artery pressure measurements. Angiology, 2003;54(1):39-44.
If your symptoms persist for a week or two, see your doctor, Gornik suggests. They’ll likely do a physical exam and an ankle-brachial index test, which measures blood pressure in your legs and arms.
If peripheral artery disease is suspected, the initial study is the ankle–brachial index (ABI). [20] The ABI is a simple, non-invasive test that measures the ratio of systolic blood pressure in the ankle to the systolic blood pressure in the upper arm.
Some Clinical Physiology departments perform tests from related medical specialties including nuclear medicine, clinical neurophysiology, and radiology. In the health care systems of countries that lack this specialty, the tests performed in clinical physiology are often performed by the various organ-specific specialties in internal medicine ...
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In patients with non-palpable pulses, evaluation of PAD with an ankle-brachial index should also be performed. [12] Ulceration or deeper wounds should be probed to identify the depth of penetration and determine involvement of bone, which would indicate osteomyelitis. [14]