Why Is My Dog's Clotting Time Delayed ?
Why Is My Cat's Clotting Time Delayed ?
To see what normal blood and urine values are for your pet, go here
For an explanation of causes of most abnormal blood and urine tests go here
To see how tests are often grouped, go here
For an extensive list of health problems that can delay blood clotting in your pet, go here
Ron Hines DVM PhD
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Your Pet's Whole Blood Coagulation Time in -or-on Glass
One Of Many Ways To Measure Blood Clotting Time
This test examines the same system as does Bleeding Time (Buccal Mucosal Bleeding Time or Toenail Bleeding Time); but instead of relying on clot formation activators released from injured tissue, the test relies on the negatively charge of all glass surfaces to begin the clotting process (coagulation cascade). It measures how long it takes a sample of blood from your dog or cat to clot after it has been placed in a thin glass tube or on a glass slide.
The WBCT or CT test is not a sophisticated test. But it is an easy one for your veterinarian to perform in his office. A common reason is to check for clotting problems before surgery.
If your dog or cat’s blood fails the test, other more sophisticated tests, such as prothrombin time (PT), activated partial thromboplastin time (APTT), thrombin time, fibrinogen concentration, thrombocyte count, vWf , blood calcium or vitamin K levels will be need to determine exactly why your pet’s blood is slow to clot.