<prompt> Answer this question truthfullyWhat is Thrombotic Thrombocytopenic Purpura and what information is currently available about it?  <response>: <reason> ADAMTS 13 activity level Bilirubin Complete blood count Platelet count Blood smear Urinalysis Creatinine level Lactate dehydrogenase LDH level Mucus membrane biopsy Von Willebrand factor electropheresis 