ACE- Inhibitor Renogram Procedure

A renal scan called an ACE- Inhibitor Renogram assesses if renal artery stenosis and renovascular hypertension are present. This is done to rule out renal artery stenosis in those with high blood pressure. The procedure is also known as a captopril renal scan.

Why is ACE- Inhibitor Renogram Recommended?

To determine whether renal artery stenosis and renovascular hypertension are present in a patient with high blood pressure issues.

Precautions/ Preparation

Before the test, you need to drink enough water. One liter of liquid should be consumed every hour leading up to your examination. But it's also very important to skip meals for at least four hours before the test. Before the examination, several medications must be stopped. You will receive medication instructions from a doctor.

Procedure

• Either Captopril or Enaloprilate will be injected into your vein intravenously before or during the renal scan with the ACE Inhibitor.
• After the captopril has been administered, you will lie down under a gamma camera, and during the following hour, your blood pressure and pulse will be tested every 15 minutes.
• A small amount of radiotracer will be intravenously administered.
• The radiotracer will be delivered to the kidneys based on their condition and blood flow. During the captopril renal scan, you will be photographed with the camera under the table for roughly 30 minutes.