D-Dimer testing is primarily used to assess which of the following?

D-Dimer testing is primarily used to assess which of the following?

• A. Assess Active Fibrin Formation and Breakdown
• B. Detect High Platelet Count
• C. Screen for Anemia
• D. Measure Clotting Factor Levels

Answer: (A)

D-dimer testing detects a fragment produced when crosslinked fibrin is broken down by plasmin, so its presence signals that both clot formation and subsequent fibrinolysis have occurred. This makes it useful for evaluating suspected thrombotic conditions, such as venous thromboembolism, because a negative result can effectively help rule out clotting in patients with low to intermediate pretest probability, while a positive result indicates that clotting and breakdown have happened but is not specific to a single disorder. It does not measure platelet count, screen for anemia, or quantify clotting factor levels, so those aspects are assessed by other tests.

D-dimer testing detects a fragment produced when crosslinked fibrin is broken down by plasmin, so its presence signals that both clot formation and subsequent fibrinolysis have occurred. This makes it useful for evaluating suspected thrombotic conditions, such as venous thromboembolism, because a negative result can effectively help rule out clotting in patients with low to intermediate pretest probability, while a positive result indicates that clotting and breakdown have happened but is not specific to a single disorder. It does not measure platelet count, screen for anemia, or quantify clotting factor levels, so those aspects are assessed by other tests.