blood disorders
Thrombotic Thrombocytopenic Purpura (TTP)
Diagnosis of TTP
Blood tests to measure platelet count andADAMTS13enzyme levels Tests for autoantibodies against theADAMTS13enzyme Tests to rule out other disorders that cause a low platelet count and bleeding Doctors suspect thrombotic thrombocytopenic purpura (TTP) when they find a low platelet count in people who have been ill, who have taken certain drugs, or who are pregnant. Although there are no blood tests that specifically diagnose TTP, doctors do a number of blood tests that, together with people's symptoms, help make the diagnosis. These blood tests often include tests demonstrating that red blood cells are being destroyed, tests to see how well the kidneys are working, and often tests to measureADAMTS13enzyme levels and the presence of antibodies against the enzyme. 