There are very few yankable objects. I forget it even exists a lot. I got shot by a Spec Dart and it shows that shrapnel is stuck in you, but it actually requires it be yanked out.
Spent about forty minutes with it painfully inside me- saw three different medics who were stumped as to why they couldn’t dig it out, and the Field Doc was clueless as well.
Finally ran into a PFC who just yanked it out, bless his heart.
Like how it changes to a heart rate wiggly when you die, it can show a yankable, bleeding wounds so forth (and maybe add other things that show up on a visual examination).