THERAPEUTIC CLASS
Heparin induced thrombocytopenia: diagnosis and management update
Heparin-induced thrombocytopenia (HIT) is a potentially devastating immune mediated adverse drug reaction caused by
the emergence of antibodies that activate platelets in the presence of heparin. Despite thrombocytopenia, bleeding is
rare; rather, HIT is strongly associated with thromboembolic complications involving both the arterial and venous systems. A
number of laboratory tests are available to confirm the diagnosis; however, when HIT is clinically suspected, treatment
should not be withheld pending the result.
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