Fibrinogen
Label Mnemonic: FIBG
Epic code: LAB314
Order form: Laboratory Requisition
Supply order: Supply Order Form
Billing: Billing Policies
CPT code: 85384
Specimen(s):
Collection Medium:
Light Blue top tube 1.8 mL (Na Citrate)
Minimum:
Full draw; 1.8 mL light blue top (mix well). Tube must be at least 90% full.
Rejection Criteria:
Short drawn tube, clot, traumatic tap (excessive hemolysis).
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around Time:
1 hour (upon receipt in laboratory)
Reference Range:
194-448 mg/dL
Reference range updated on 12/16/2019 due to new assay reagent.

Critical value: <80 mg/dL
Comments:
Must be drawn swiftly with a clean venipuncture (no hematoma). Time drawn must be indicated. Fibrinogen may be performed on the same collection tube as Activated Partial Thromboplastin time (aPTT) and Prothrombin Time (PT).

Instrumentation changed from BCS-XP to CS-5100 on 12/16/2019.
Methodology:
Activity by optical clot detection.
Sample Processing:
Centrifuge within four hours of draw time.
Centrifuge at a speed and time necessary to get barrier separation of plasma/serum and cells.
Centrifuge at a speed and time necessary to get barrier separation of plasma/serum and cells.
Centrifuge a second time to ensure platelet poor plasma and separate plasma into a new, labeled plastic tube, cap.
Sample Storage:
Freeze plasma immediately.
Transport Instructions:
Place labeled specimen into zip-lock type biohazard bag; seal bag.
Place requisition into outside pocket of bag.
Place dry ice on top of specimen in Styrofoam container to maintain frozen temperature.
CPT Code:
85384