Teaching Points
- The suspicion of renovascular hypertension requires high clinical acumen
- Initial investigation is with an US of the kidneys, with Doppler interrogation of the renal arteries. The accuracy is dependant on the experience of the operator
- Further non-invasive investigation is based on the patient’s renal function. MRI with Gadolinium or CT Angiography are suitable tests
- Nuclear scintigraphy with Captopril enables assessment of renal function
- Angiography is the ‘Gold Standard’ and permits therapeutic intervention
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