Sign in →

Test Code LAB1121 Fibrinogen Antigen, Plasma

Additional Codes

Mayo Test Code: FIBAG

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)


Identifiying afibrinogenemia, hypofibrinogenemia and dysfibrinogenemia when ordered in combination with fibrinogen activity (FIB / Fibrinogen,Plasma)

Method Name


Reporting Name

Fibrinogen Antigen, P

Specimen Type

Plasma Na Cit

Specimen Required

Collection Container/Tube: Light-blue top (3.2% sodium citrate at 9:1 ratio)

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Plasma Na Cit Refrigerated (preferred) 14 days
  Frozen  30 days
  Ambient  72 hours

Reject Due To


Mild OK; Gross reject


Mild OK; Gross reject


Mild OK; Gross reject



Reference Values

196-441 mg/dL

Day(s) and Time(s) Performed

Monday through Saturday; Continuously

Performing Laboratory

Mayo Medical Laboratories in Rochester

Test Classification

This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
FIBAG Fibrinogen Antigen, P In Process


Result ID Test Result Name Result LOINC Value
FIBAG Fibrinogen Antigen, P 3256-5