What is the clinical utility of thromboelastography (TEG/ROTEM)?

• A. Provides real-time assessment of clot initiation, formation, strength, and lysis to guide transfusion and manage coagulopathy
• B. Measures platelet count
• C. Detects D-dimer
• D. Determines Factor VIII level

Answer: (A)

Thromboelastography (TEG) and ROTEM provide a real-time, global view of how blood clots—from initiation through strengthening to dissolution—form and break down in whole blood. This dynamic information lets clinicians tailor transfusion and hemostatic therapy to the patient’s actual coagulation status. By watching initiation (how quickly the clot starts), formation and strength (how robust the clot becomes), and lysis (how much it breaks down), you can decide whether to target platelets, fibrinogen (or cryoprecipitate), plasma factors, or antifibrinolytic therapy. This contrasts with tests that measure a single aspect, such as platelet count, D-dimer, or a specific factor level, which don’t capture the integrated, functioning clot in real time. In practice, TEG/ROTEM guides transfusion decisions and coagulopathy management across settings like trauma, major surgery, liver disease, and obstetrics by providing a practical picture of how the clot behaves under physiological conditions.