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Why Have A D-dimer Test On Your Dog ?

Why Have A D-dimer Test On Your Cat ?

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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The D- Dimer Test

When blood clots (thrombi) that have formed anywhere in your pet’s body begin to dissolve, they liberate a compound called D-dimer. That is because those clots contain fibrin and when fibrin dissolves (fibrinolysis) D-dimer fragments are released.

Besides confirming the presence of blood clots, D-dimer blood levels also can increase in life-threatening clotting defect that sometimes accompany shock and trauma called disseminated intravascular coagulation (DIC).

The d-dimer test is only one of a group of tests that investigate the state of your pet’s blood clotting mechanism. You veterinarian might include it if he/she is suspicious that you pet is bleeding internally (or excessively through a wound) due to a fault in its clotting mechanism. Because the clotting of blood is such a complex process (the coagulation cascade) with many different stages or steps and the interplay of many body chemicals and cells; a series of tests might be required to determine exactly what is wrong. The other tests used include a thrombocyte count, prothrombin time (PT), partial thromboplastin time (PTT), Fibrinogen level and thrombin clot time TCT.

Reasons Why Your Pet’s D-dimer Blood Levels Might Be High :

A disseminated intravascular coagulation crises, blood clots, severe trauma, after extensive surgery, cancer, internal hemorrhage, anaphylactic shock - perhaps after a vaccination, liver disease, lung embolisms and occasionally in wide spread inflammatory disease like FIP in cats

Complementary Tests :

Prothrombin time (PT), aPTT, CBC/WBC and blood chemistry panel

.................... DxMe