| 英文摘要 |
Dizziness and headache are common but nonspecific symptoms that may mask underlying life-threat¬ening disorders. We report the case of a 39-year-old woman who presented with dizziness, headache, and ecchymosis. Initial laboratory evaluation revealed anemia and thrombocytopenia, and a peripheral blood smear demonstrated fragmented red blood cells, consistent with microangiopathic hemolytic anemia. Despite the nonspecific initial presentation, systematic clinical reasoning and risk stratification using the PLASMIC score were applied to guide early decision-making by the nurse practitioner. Before confirmation of ADAMTS-13 activity, the patient was clinically assessed as having a high clinical probability of thrombotic thrombocytopenic purpura (TTP). Prompt initiation of therapeutic plasma exchange and corticosteroid therapy was undertaken to reduce the risk of neurologic deterioration and end-organ damage. During treatment course, the platelet count declined repeatedly, and the patient was ultimately diagnosed with refractory TTP. This case highlights the value of the PLASMIC score as a practical risk stratification tool to support early treatment decisions in suspected TTP. It also underscores the important role of nurse practi¬tioners in early risk recognition, clinical judgment, and interdisciplinary collaboration when managing patients with nonspecific but potentially critical presentations. |