Diagnosis
The gold standard investigation to diagnose renal artery stenosis is digital subtraction angiography.
- refractory hypertension - high blood pressure that cannot be controlled adequately with antihypertensives
- auscultation (with stethoscope) - bruit ("rushing" sound) on affected side, inferior of the costal margin
- captopril challenge test
- captopril test dose effect on the differential renal function as measured by MAG3 scan.
- renal artery arteriogram
A clinical prediction rule is available to guide diagnosis.
Read more about this topic: Renal Artery Stenosis