What is Adrenal Vein Sampling?

Adrenal vein sampling is performed to help diagnose conditions associated with with excess aldosterone or aldosterone deficiency.  

What happens during the procedure?

This test is usually done by an Interventional Radiologist.  You will be asked to lie flat on your back. Conscious sedation is provided during the procedure.  You will be monitored throughout the procedure.  The procedure may either be done through the neck or groin.  The area will be cleaned with antiseptic.  Towels and drapes are placed over you to create a sterile work environment.  Lidocaine is injected into the right groin.  Contrast dye is injected to allow visualization of the vessels.  The contrast dye will create a brief, warm feeling throughout the body.  Blood is then drawn through a catheter from both adrenal glands.  Once the procedure is done, the catheter is removed and pressure is applied for about 15 minutes over the vein to stop the bleeding.  The procedure lasts about 1-2 hours.  You will be asked to lie flat on your back for 2-4 hours during recovery.  Based on if you are bleeding or not will determine when you will be allowed to leave the hospital.