RLE, LLE, LUE thrombosis in pregnancy. The risk of thrombosis in pregnancy increases by 5-50x.
HIT is an important diagnosis to consider when there is a drop in plt’s by 30%-50% while on heparin. When considering HIT use the 4T score to help risk stratify the patient.
The 4T score is low (0-3 points), intermediate (4-5 points), high (6-8 points). Send enzyme immunoassay looking for the presence of antiplatelet factor 4 (PF4)/heparin antibodies if the 4T score is intermediate or high.
Here is a link to the article where the 4T score was first introduced in 2006 (here)