Peripheral smear, hemoglobin, platelets, PT/INR, PTT, fibrinogen, FDPs, D-dimer, haptoglobin, LDH, bilirubin
Schistocytes (aka Helmet cells) secondary to fragmentation hemolysis classic finding on peripheral smear
Schistocytes (aka Helmet cells) secondary to fragmentation hemolysis classic finding on peripheral smear
Schistocytes
High: +/- LDH and unconjugated bilirubin
Low: Hgb, platelets, +/- haptoglobin
DIC= elevated PT/INR/PTT/FDPs/D-dimer, low fibrinogen
TTP/HUS = normal PT/INR/PTT/FDPs/D-dimer/fibrinogen
Microangiopathic hemolytic anemia
Disseminated Intravascular Coagulation 
Autoimmune hemolytic anemia
Thrombotic Thrombocytopenic Purpura 
Polycythemia vera
Hemolytic Uremic Syndrome 
Aplastic anemia
HELLP syndrome