If I consume a blood thinner at night, and go for a blood d dimer test next day, will it come lower? Father had d dimer 1800 (the report was fishy as it came 5 days later, and sample was transported to another city). So my father, after consultation, consumed dabigatran 150. And next day went for a blood test again, it came out to be 200. He still continued blood thinner for 1 week and tested again, it was 210 My question is, is this low number due to dabigatran, or the first report can be discarded