Plasma concentration of renin is measured prior to and following the administration of<unk> . The CCT is considered positive if the renin levels increase substantially or the baseline renin level is abnormally high. An abnormal<unk>  test is indicative of the presence of renovascular disease. In adults CCT in adults is known to have high sensitivity, but a low specificity. Subtraction angiography is considered a more suitable test for renal artery stenosis in adults.
Captopril challenge test
Captopril suppression test
Aldosterone-to-renin ratio
Fractional flow reserve
Plasma renin activity
Cold pressor test
Electrocochleography
Glucose clamp technique