Answer to Question 1
Answer: B, C
When secondary hypertension is suspected, diagnostic tests include an intravenous pyelogram and renal ultrasound to determine if the renal system is the cause of the hypertension. Cerebral angiogram, cardiac catheterization, and myelogram are not diagnostic tests to determine the cause for secondary hypertension.
Answer to Question 2
Answer: B
A drop in renal perfusion stimulates renin release. Renin converts angiotensinogen to angiotensin I, which is then converted to angiotensin II in the lungs. ANP and BNP are released from the atrial cells, not the renal system. The catecholamines epinephrine and norepinephrine are released from the adrenal cortex, not from the kidneys.