Buccal mucosal bleeding time is used to evaluate:

Buccal mucosal bleeding time is used to evaluate:

• A. Measures intrinsic coagulation pathway
• B. Measures primary hemostasis
• C. Measures fibrinogen levels
• D. Measures platelet aggregation

Answer: (B)

Buccal mucosal bleeding time evaluates primary hemostasis, the initial formation of a platelet plug at a small mucosal wound. By creating a standardized minor incision inside the cheek and timing how long bleeding continues, this test reflects how well platelets function and interact with intact vessel walls to stop the bleed. A normal result suggests platelets and vessel walls are working properly; a prolonged time points to problems with platelet function, low platelet count, or von Willebrand disease, all of which impair initial platelet plug formation. It does not measure the coagulation cascade factors (intrinsic or extrinsic pathways) or fibrinogen levels, nor does it assess platelet aggregation in vitro.

Buccal mucosal bleeding time evaluates primary hemostasis, the initial formation of a platelet plug at a small mucosal wound. By creating a standardized minor incision inside the cheek and timing how long bleeding continues, this test reflects how well platelets function and interact with intact vessel walls to stop the bleed. A normal result suggests platelets and vessel walls are working properly; a prolonged time points to problems with platelet function, low platelet count, or von Willebrand disease, all of which impair initial platelet plug formation. It does not measure the coagulation cascade factors (intrinsic or extrinsic pathways) or fibrinogen levels, nor does it assess platelet aggregation in vitro.