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HelpOrder Code FIBAG Fibrinogen Antigen, Plasma
Useful For
Evaluation of fibrinogen deficiency
Measuring fibrinogen in patients with elevated plasma levels of fibrin degradation products, patients receiving heparin, and in patients with antibodies to thrombin (following surgical use of topical bovine thrombin)
Identifying afibrinogenemia, hypofibrinogenemia, and dysfibrinogenemia when ordered in combination with fibrinogen activity (FIBTP / Fibrinogen, Plasma)
Method Name
Immunoturbidimetric
Reporting Name
Fibrinogen Antigen, PSpecimen Type
Plasma Na CitSpecimen Required
Supplies: Sarstedt Aliquot Tube 5 mL (T914)
Collection Container/Tube: Light-blue top (3.2% sodium citrate at 9:1 ratio)
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions: Centrifuge and aliquot plasma into plastic vial. Send refrigerated.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Plasma Na Cit | Refrigerated (preferred) | 14 days | |
| Frozen | 30 days | ||
| Ambient | 72 hours |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Reference Values
≥18 years: 196-441 mg/dL
Reference values have not been established for patients that are less than 18 years of age.
Method Description
The K-ASSAY Fibrinogen test analyzes the quantitative determination of fibrinogen in human plasma by immunoturbidimetric analysis. Samples and antibody reagent are automatically pipetted into individual cuvettes. Following an initial incubation and measurement of sample blank, antiserum is added to the cuvettes. The sample (antigen) solution and antiserum are then mixed in the reaction cuvettes. Insoluble antigen-antibody complexes form. The immune complexes cause an increase in light scattering, which correlates with the concentration of plasma fibrinogen. The absorbance of the solution is measured.(Package insert: K-ASSAY Fibrinogen. Kamiya Biomedical Company; 03/2023)
Day(s) Performed
Monday through Friday
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
85385