Microangiopathic causes such as thrombocytopenic purpura (TTP), hemolytic uremic syndrome (HUS), and disseminated intravascular coagulation (DIC) were also less likely due to the negative ADAMTS 13, acute kidney injury (AKI) normalization upon transfusion, and coagulation factors (prothrombin time (PT)/international normalized ratio (INR) and activated partial thromboplastin time (aPTT)) being normal upon arrival. The gene discussed is F2; the disease is hemolytic-uremic syndrome.