A patient's laboratory test results are negative for D-dimers.However, the health-care provider is concerned that an interfering factor may be skewing the results of this test.Which of the following factors could cause a false-negative result in this case?
A)Aspirin
B)Ovarian cancer
C)Warfarin
D)Rheumatoid arthritis

Question

Quizplus · Accepted Answer

Warfarin can cause a false-negative result in a D-dimer test because it affects the coagulation pathway, potentially leading to lower levels of D-dimers than would be present if a clot were forming without the influence of anticoagulation therapy.

A Patient's Laboratory Test Results Are Negative for D-Dimers