Optimizing the Diagnosis of Heparin Induced Thrombocytopenia

Exclusion criteria

• ✕. Less than 18 years of age;
• ✕. Prior diagnosis of HIT ever;
• ✕. Patient enrolled within preceding 100 days;
• ✕. Functional/ confirmatory platelet activation results available at the time of enrollment;
• ✕. Requiring cardio-pulmonary bypass or percutaneous cardiac angioplasty or any other cardiac or vascular surgery/procedure requiring intra-operative/procedural heparin administration planned within 30 days;
• ✕. Unable to complete study follow up;
• ✕. Unable to obtain consent (or proxy consent from substitute decision maker where applicable);
• ✕. Life expectancy less than 30 days;