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- Doppler ultrasound: What is it used for? - Mayo Clinic
Doppler ultrasound is a noninvasive test that can be used to measure the blood flow through your blood vessels It works by bouncing high-frequency sound waves off red blood cells that are circulating in the bloodstream A regular ultrasound uses sound waves to produce images, but can't show blood
- Renal artery stenosis - Diagnosis and treatment - Mayo Clinic
Diagnosis To diagnose renal artery stenosis, your healthcare professional may start with: A physical exam This includes listening through a stethoscope over the kidneys for sounds that may mean the artery to the kidney is narrowed A review of your medical history Blood and urine tests to check how your kidneys work Blood and urine tests to measure the levels of hormones that keep blood
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