I had a skin test as part of my required immunization before starting med school. While there was no bump the place where the nurese injected whatever it was (PPD) made a red splotch that was about a half an inch across. This was on April 13th and it still appears red. Was this almost positive and what does it mean? Also, I have performed cadaver studies in the past and blood work shows a slight elevation out of the normal range for bilurubin. Could this be from just drinking too much beer on the weekends or is it possible that I may have some sort of Hepatitis. Thanks in advance for this free medical advice.