An arterial duplex utilizes sound waves to obtain images of the arteries in the legs or arms. The harmless sound waves leave a transducer that is placed at various points on the legs or arms and the sound waves are bounced back to the transducer and converted to images. This allows the physician to detect blockages in the arteries of the arms or the legs. The nurse may also obtain Doppler sounds by bouncing sound waves off blood vessels and detecting blood flow patterns in the arteries. There is no preparation for the arterial duplex. One hour should be allowed for this test. A physician will read the test.
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