Final answer:
The young lady with an abdominal bruit and elevated renin/A1/A2 levels likely has renal artery stenosis, which is causing hypertension due to reduced kidney blood flow and activation of the renin-angiotensin system.
Step-by-step explanation:
The condition of the young lady experiencing an abdominal bruit and elevated renin, angiotensin I (A1), and angiotensin II (A2) levels may be indicative of renal artery stenosis. This condition leads to hypertension because the narrowing of the renal arteries causes reduced blood flow to the kidneys. In response, the renin-angiotensin system is activated. Renin, produced by the kidneys, converts angiotensinogen from the liver into angiotensin I, which then gets converted to angiotensin II, a potent vasoconstrictor raising blood pressure. Abdominal bruits are often heard in patients with renal artery stenosis due to turbulent blood flow caused by the narrowing of the artery.