What does "pertinent negatives" on a medical record mean??

She's A Babe,But ...: Those "pertinents"(both positive and negative) focus on important aspects of your problem and put them into a context and perspective in order to create a clearer picture of what you may have. It helps a reviewer to filter in the important stuff.The 'negatives' help eliminate things, the "positives"to include things.Like:' His heart is pumping(+) but his brain is dead(-)' or She's a babe(+) but...