HEPATITIS A ANTIBODY, TOTAL STD'S BLOOD TEST CAN BE USED TO LOOK FOR BOTH RECENT AND PAST EXPOSURE TO HEPATITIS A. HEPATITIS IS AN INFLAMMATION OF THE LIVER THAT CAN BE CONTRACTED THROUGH UNPROTECTED SEX, USING CONTAMINATED NEEDLES, OR OTHER CAUSES. THIS TEST CAN ALSO BE USED TO VERIFY IMMUNITY TO HEP A.