What diagnostic test is recommended for an initial evaluation of peripheral vascular disease?

The recommended diagnostic test for an initial evaluation of peripheral vascular disease is the ankle-brachial index (ABI). This test is a simple, non-invasive method that compares the blood pressure in the patient's ankle with the blood pressure in the patient's arm. The ABI provides information about blood flow and helps to identify blockages in the peripheral arteries, which is a key concern in peripheral vascular disease.

The test is valued for its ease of use, cost-effectiveness, and ability to provide immediate results, which makes it suitable for initial assessment. A low ABI indicates reduced blood flow in the legs, suggesting the presence of significant peripheral artery disease. This initial evaluation can guide further diagnostic processes or treatment decisions, making the ABI a cornerstone in the assessment of patients suspected of having peripheral vascular issues.