Mucosal bleeding time

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The mucosal bleeding time ( s . Buccal Mucosal Bleeding Time ) is a diagnostic test in veterinary medicine is used for the examination and differentiation of blood coagulation disorders. It serves as a function test of the blood platelets and thus of the primary hemostasis , and thus provides a point of reference for the differentiation between thrombopathies and coagulopathies . An analogous test in human medicine is the determination of the bleeding time .

Indications

Mucosal bleeding time is examined in animals clinically suspected of having a bleeding disorder. The examination can also be carried out routinely when screening puppies of endangered dog and cat breeds ( Von Willebrand disease ) or as a preventive check-up before a surgical procedure .

execution

The investigation is today usually with the aid of a disposable fleam performed in which a built-in a plastic holder spring-loaded lancet push of a button a small section of standardized length and depth of the oral mucosa sets. The incision is made on the inside of the lip or in the gums . Immediately thereafter, sterile blotting paper is held under, but not in, the wound and the time is measured until no more blood comes out of the wound.

interpretation

The normal duration of bleeding after the incision is two to four minutes in dogs and up to 3.3 minutes in cats . A prolonged bleeding time indicates a dysfunction of the blood platelets (thrombopathy) or a lack of blood platelets ( thrombocytopenia ). In the case of disorders of the secondary hemostasis (coagulopathy), the mucosal bleeding time is normally not prolonged, but bleeding can occur after a while . In the differential diagnosis , a prolonged mucosal bleeding time can very rarely be caused by structural defects in the vascular wall .

Web links

Individual evidence

  1. ↑ Buccal Mucosal Bleeding Time on Cornell University , accessed September 10, 2013