The buccal mucosa bleeding time test assesses which parameter?

The buccal mucosa bleeding time test assesses which parameter?

• A. Fibrinogen
• B. Partial thromboplastin time
• C. Prothrombin time
• D. Platelet function

Answer: (D)

The buccal mucosa bleeding time measures how well platelets form a primary hemostatic plug. It tests platelet function and the initial steps of clot formation after a standardized mucosal injury, which depend on platelet number, platelet aggregation, and von Willebrand factor. Because it evaluates the speed of bleed cessation from the mucosa, it reflects platelet function rather than the activity of coagulation factors in the plasma. Fibrinogen levels and the coagulation cascades measured by prothrombin time or partial thromboplastin time are not what this test assesses. A prolonged bleeding time suggests platelet dysfunction, thrombocytopenia, or von Willebrand disease, while a normal result indicates adequate primary hemostasis.

The buccal mucosa bleeding time measures how well platelets form a primary hemostatic plug. It tests platelet function and the initial steps of clot formation after a standardized mucosal injury, which depend on platelet number, platelet aggregation, and von Willebrand factor. Because it evaluates the speed of bleed cessation from the mucosa, it reflects platelet function rather than the activity of coagulation factors in the plasma. Fibrinogen levels and the coagulation cascades measured by prothrombin time or partial thromboplastin time are not what this test assesses. A prolonged bleeding time suggests platelet dysfunction, thrombocytopenia, or von Willebrand disease, while a normal result indicates adequate primary hemostasis.