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Dr KK Aggarwal 23 February 2018
The ankle–brachial index (ABI), a simple, non–invasive 10–minute test should be incorporated into a routine physical exam to diagnose peripheral arterial disease in the middle-aged and the elderly, especially those with heart attack risk factors like smokers, diabetics and the ones with high BP or cholesterol levels.
With the patient in a supine position, the doctor takes blood pressure readings from both arms; he then takes blood pressure readings from both ankles with a sphygmomanometer and Doppler device. ABI value is calculated by dividing the higher systolic pressure in each leg by the higher systolic brachial pressure.
ABI scores should be interpreted as follows:
Presence of peripheral arterial disease may indicate associated blockages in the heart and proneness to heart attack or paralysis.
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