Negative (<250 ng/mL; SI units: <250 ng/L)
. Blue-top tube.
■ A fibrin degradation product produced only after a clot has
formed and is in the process of being broken down.
■ Used in the diagnosis of deep vein thrombosis (DVT),
pulmonary embolism (PE), or disseminated intravascular
coagulation (DIC).
