Doppler ultrasound exam of an arm or leg

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Doppler ultrasonography of an extremity

This test uses ultrasound to examine the blood flow in the major arteries and veins in the arms and legs.

The test is done in the ultrasound or radiology department or in a peripheral vascular lab.

To examine the veins:

A water-soluble gel is placed on a handheld device called a transducer, which directs the high-frequency sound waves to the artery or veins being tested.

To examine the arteries:

Blood pressure cuffs may be put around different parts of the body, including the thigh, calf, ankle, and different points along the arm. A paste is applied to the skin over the arteries being examined. Images are created as the transducer is moved over each area.

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You will need to remove clothing from the arm or leg being examined.

There is little or no discomfort associated with this test.

This test is done as an alternative to arteriography and venography. It may help diagnose:

• Arteriosclerosis of the arms or legs
• Blood clot (deep vein thrombosis)
• Venous insufficiency

The test may also be used to evaluate injury to the arteries and to monitor arterial reconstruction and bypass grafts.

Review Date: 05/13/2010
Reviewed By: Benjamin Taragin M.D., Department of Radiology, Montefiore Medical Center Bronx, N.Y. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).