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Fibrinogen Antigen, Nephelometry
Test CodeFBAG
Preferred Specimen
1 mL plasma collected in 3.2% sodium citrate (light blue-top) tube
Patient Preparation
Overnight fasting is required
Minimum Volume
0.5 mL
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: Unacceptable
Refrigerated: 8 days
Frozen: 90 days
Refrigerated: 8 days
Frozen: 90 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Lipemia • Received room temperature
Methodology
Nephelometry
Setup Schedule
P.M. Sets up 2 days a week.
Clinical Significance
Low levels of fibrinogen are associated with bleeding most commonly secondary to liver disease or disseminated intravascular coagulation (DIC). Fibrinogen is an acute phase reactant and thus elevated levels may be associated with inflammation. Increased concentrations are also associated with increased risk of atherosclerosis.