The blood pressure may be high, and there may be a history of high blood pressure that doesn't respond to medication or is difficult to control. A bruit may be heard on examination with a stethoscope (auscultation) over the kidney.
A radionuclide renogram may show 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.
An MRI, kidney CT scan, or kidney ultrasound may indicate a decreased size of the kidney, and/or a decrease in bloodflow through the artery because the artery has become narrow.
Renal arteriography shows the exact location of the stenosed (blocked) area.
This disease may also alter the results of the following tests:
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