<prompt> All are true about heparin induced thrombocytopenia HIT, EXCEPT:Thrombocytopenia is not severe usuallyAssociated with bleeding especially from GI tractMarked increase in thrombosisHIT can occur after exposure to low molecular weight heparin  <response>: 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 