<unk>  <unk>  is an adverse reaction to a blood<unk>  or platelet<unk>  that occurs when the body produces alloantibodies to the introduced platelets' antigens. These alloantibodies destroy the patient's platelets leading to thrombocytopenia, a rapid decline in platelet count.<unk>  usually presents 5–12 days after<unk> , and is a potentially fatal condition.
Post-transfusion purpura
DIC
Heparin-induced thrombocytopenia
Disseminated intravascular coagulation
Roussy–Lévy syndrome
Idiopathic thrombocytopenic purpura radiation
Drug induced hemolytic anemia
Idiopathic thrombocytopenic purpura