<5 ng/mL; SI units: <5 mg/L
. Blue-top tube (check with lab).
■ Blood clots in the vascular system stimulate the production
of plasmin, which breaks down clots into fibrin split
products.
■ Elevated amounts of fibrin split products in the blood
indirectly indicate the presence of blood clots or a
fibrinolytic disorder such as DIC.
