I recently had an elevated D-Dimer level in my blood lab which indicates a clot of some sort. I remember sitting in the doctor’s office while my primary care doctor was reading the lab results. He literally started Googling “primary causes of D-Dimer elevation” and clicked on the link to a WebMD documentation on D-Dimer levels. That’s when I realized that’s their StackOverflow. Combined with their existing training, I assume WebMD helps them make better judgement calls (definitely compared to a lay person self-diagnosing themselves). He then said, “well, none of the top causes really apply to your situation: you didn’t have a surgery recently and it’s impossible for you to get pregnant as a guy”.
I was consequently referred to a hematologist.