Hey everyone, it’s Medicine Mondays and this post is wayyyyyyyyyy late. Let me try to explain by saying today was “PPD Day”. This will be a very short post. “PPD Day”? Yes, PPD, as in purified protein derivative or Mantoux test, which is used in Tuberculin Skin Testing (TST). You see, my son needs a PPD because he’s moving on to preschool. Luckily, here in Hawaii, PPD testing is free for school children and the […]