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doppler ultrasound

a doppler ultrasound (or duplex scanning) is a medical test that uses reflected sound waves to estimate the speed and direction of blood as it flows through a blood vessel. it helps doctors evaluate blood flow through arteries and veins.

doppler ultrasound can be used to evaluate the vessels in several areas of the body. for example, a doppler ultrasound test of the blood vessels in the neck (carotid ultrasound) can be done to estimate a person's risk of a stroke from blockage in those arteries. renal ultrasound can help detect kidney problems. lower extremity ultrasound can be used to detect a blood clot in the deep veins of the legs. a doppler ultrasound also may be used to evaluate problems with the blood flow to the placenta and umbilical cord in a pregnant woman; problems with this blood flow may point to fetal distress.

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this information does not replace the advice of a doctor. healthwise, incorporated, disclaims any warranty or liability for your use of this information. your use of this information means that you agree to the terms of use and privacy policy. to learn more about healthwise, visit healthwise.org. © 1995-2022 healthwise, incorporated. healthwise, healthwise for every health decision, and the healthwise logo are trademarks of healthwise, incorporated.

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