demonstration of drug‐dependent platelet antibodies in vitro; however, laboratory testing is
not readily accessible and test methods are not standardized. Objective: To identify drugs
with the strongest evidence for causing DITP based on clinical and laboratory criteria.
Patients/Methods: We developed a grading system to evaluate the quality of DITP laboratory
testing. The 'DITP criteria'were:(i) Drug (or metabolite) was required for the reaction in …