How I Think About Anti-heparin/PF4 Testing in HIT

When we are looking for heparin-induced thrombocytopenia, we typically start with anti-heparin/PF4 testing. Testing is great; but what do you do with the results? In this video, hematologist, Dr. Onwuemene explains the importance of calculating the pre-test probability and how to match pre-test probability with the anti-heparin/PF4 result.