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19 Jul 2006

Thank you for the reply. I need to know something else, like I mentioned before the dvt was apparently due to a lack of Protein S while being pregnant the first time, does this mean that my daughter might get this too and will there be something wrong with her?
My INR results are at time normal but when I go for the D Dimer the results are very high? Why is this?
Answer 396 views

01 Jan 0001

During pregnancy there is a natural decrease in Prot S to levels. This is one mechanism for increased risk of clotting during pregnancy. There are other acquired factors in pregnancy also contributing to the increased risk of clotting. On the other hand there are some patients who inherit a condition where they produce less Prot S or produce abnormal Prot S. This is referred to as an inherited Prot S deficiency. Your daughter might be at increased risk of developing a blood clot during pregnancy if there is an inherited Prot S deficiency in your family. I suggest that this be discussed with the appropriate doctor when she wants to fall pregnant or use oral contraceptives.

A positive D dimer test indicates that a clot has formed and that your body is in the process of dissolving the clot – fibrinolysis is taking place. After a blood clot has formed the D dimer test will normally be positive and as the clot is resolves the level should return to normal. This process takes time. Warfarin prevents any further clots from forming and extension of the already formed clot. The INR is used to test for the effect of warfarin and the result should be between 2-3. At this level the anticoagulation effect is optimal and the risk of bleeding minimal and this helps your body to naturally resolve the clot. It is therefore acceptable that the INR is within therapeutic range and the D dimer is positive.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical examination, diagnosis and formal advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.
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