duplex/doppler ultrasound exam of extremity, vascular ultrasound…

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what the risks are duplex/doppler ultrasound test, this test examines the blood flow, in the major arteries, veins, in the arms, legs, the use of ultrasound, high-frequency sound waves, test combines doppler ultrasonography, uses audio measurements to "hear", measure the blood flow, duplex ultrasonography, provides a visual image, test, in the ultrasound, radiology department, to examine the veins, a water-soluble gel, on the transducer, a hand-held device that directs the high-frequency sound waves, artery, vein tested, on the skin over the veins, the limb tested, blood flow on a doppler examination creates a "swishing" sound, the superficial, skin, deep veins, evaluated, visual images, to examine the arteries, blood pressure cuffs, placed around the thigh, calf, ankle to examine the legs, to test the arms, blood pressure cuffs, placed at different points, along the arm, a conductive paste is applied, skin over the arteries examined, cuff, inflated, above the normal systolic blood pressure, the extremity, transducer, near the cuff, pressure, in the cuff is released slowly, "swishing" sound is detected, measurement is recorded, the blood pressure, repeated, each cuff, visual images, remove clothing, extremity, inform the heath care provider of any medications, blood pressure, vascular medications, interfere, infants, children, procedure depends on child's age, prepare child, infant test, procedure preparation, birth to 1 year, toddler test, procedure preparation, 1 to 3 years, preschooler test, procedure preparation, 3 to 6 years, schoolage test, procedure preparation, 6 to 12 years, adolescent test, procedure preparation, 12 to 18 years, no discomfort, ultrasound device, feel tightening in arm, leg pressure cuff is used, pressure, last only a few moments, this test, an alternative to arteriography, venography, invasive procedures, help diagnose a blood clot, venous insufficiency, arterial occlusion, closing, abnormalities, in the arterial blood flow, a narrowing, to evaluate trauma, arteries, monitor arterial reconstruction, bypass grafts, veins show normal flow, deep veins show flow, breathing, veins, fully compressible, have no internal clots, arteries have normal systolic, diastolic components on the ultrasound, correspond, beating, resting, the heart, normal blood pressure, no sign of a narrowing, closure, normal ankle-to-brachial arterial blood pressure index, ratio of systolic blood pressures, 0.85, greater, veins, venous occlusion, closing of vein, blood clots, arteries, arterial occlusive disease, spastic arterial disease, arterial contractions brought on by cold, emotion, embolic arterial occlusion, obstruction, in the artery by a body blood clot, fat globules, air bubbles, no risks from using ultrasound waves on the extremities, cigarette smoking, nicotine, cause the arteries, in the extremities to constrict.