Renal artery stenosis
Alternative names:
occlusion - renal artery; renal artery occlusion; stenosis - renal artery
Symptoms:
There are usually no symptoms.
Signs and tests:
The blood pressure may be high, and there may be a history of hypertension that is refractory or difficult to control. A bruit may be heard on examination with a stethoscope (auscultation) over the kidney.
- A radionuclide cystogram may indicate a decreased blood flow. The value of radionuclide scanning is increased if the test is done twice: once after a dose of captopril and once without the captopril.
- A kidney X-ray, kidney CT scan, or kidney ultrasound may indicate a decreased size of the kidney, and/or a decreased arterial flow secondary to narrowing of the artery.
- Renal arteriography shows the exact location of the stenosed area.
This disease may also alter the results of the following tests:
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