Figure 1.
Clinical courses of index (A) and screen-positive (B) patients. The gray shaded region indicates a platelet count of <150 × 109/L. Initiation of plasma exchange is noted. Both patients were also treated with corticosteroids and rituximab when the diagnosis of TTP was established. ECG, electrocardiogram; ECHO, echocardiogram; LLN, lower limit of normal; TPE, therapeutic plasma exchange.
