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A member asked:
Can xarelto give a false negative ddimer result?
A doctor has provided 1 answer
False positive, not false negative. There is a study in progress about the falsely positive (high) d-dimer when taking xarelto. Among 186,304 people taking Xarelto, 72 people (0.04%) have an increased d-dimer and it is considered an adverse effect and it is relatively rare (1 out of 2,500). If you take xarelto for a blood clot, d-dimer should normalize so d-dimer has been used for tx monitoring.
Answered 5/31/2022
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Is it possible to have blood clot in leg even with normal x-ray, ekg, troponin, d-dimer & being on xarelto for a-fib? Also, creatine kinease was 153.
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Why would a d dimer be false negative? Could the timing of doing the test cause a false negative?
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What are the chances of having a false negative d dimer? I had 2 negative ones in december within 2 weeks of each other
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