DHEA-sulfate blood test measures the amount of DHEA-sulfate in the blood.

Blood is drawn from a vein, usually from the inside of the elbow or the back of the hand. The puncture site is cleaned with antiseptic, and an elastic band is placed around the upper arm to cause the vein to swell with blood.

A needle is inserted into the vein, and the blood is collected in an airtight vial or a syringe. During the procedure, the band is removed to restore circulation. Once the blood has been collected, the needle is removed, and the puncture site is covered to stop any bleeding.

In infants or young children, the area is cleansed with antiseptic and punctured with a sharp needle or lancet. The blood will be collected in a small glass tube (pipette), on a slide, onto a test strip, or into a small container. A cotton pad or bandage may be applied to the puncture site if bleeding does not stop quickly.

No special preparation is necessary. However, be sure to tell your health care provider if you are taking any vitamin preparations or health supplements that happen to contain DHEA or DHEA-sulfate.

When the needle is inserted to draw blood, some people feel moderate pain, while others feel only a prick or sting. Afterward, there may be some throbbing.