All are true about heparin induced thrombocytopenia (HIT), EXCEPT:
Drug induced thrombocytopenia due to heparin has some special features. It will not lead to bleeding. Marked thrombocytopenia < 20,000 is rare. Thrombosis is a major complication. Ref: Harrisons principles of internal medicine, Edition -18, Page - 967
Thrombocytopenia is not severe usually
Associated with bleeding especially from GI tract
Marked increase in thrombosis
HIT can occur after exposure to low molecular weight heparin