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Fibrinogen (Clauss)
MessagePerformed in the Hematology Laboratory x5475, 76.
Sample MUST be drawn to minimum fill line on tube
Sample MUST be drawn to minimum fill line on tube
Test Code
FIB
Alias/See Also
Fibrinogen
CPT Codes
85384
Preferred Specimen
plasma
Minimum Volume
1.8 or 2.7 mL (depending on tube size). Sample MUST be drawn to minimum fill line on tube or the sample will be rejected as QNS.
Instructions
to prevent QNS sample draws: If the sodium citrate tube is the only sample to be collected with a butterfly collection device, draw a discard tube OR collect after drawing other samples.
Transport Container
Light Blue Top (Sodium Citrate), 1.8mL draw or 2.7 mL draw tubes
Transport Temperature
Room Temperature
Specimen Stability
Refrigerator stability: 12 hours
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Grossly hemolyzed, QNS, clotted
Methodology
Optical clot detection
Setup Schedule
24/7
Limitations
No interference up to 2 U/mL of heparin, 375 mg/dL of hemoglobin, 880 mg/dL of triglycerides, and 23 mg/dL of bilirubin.
Fibrinogen levels over 700 mg/dL are reported out as >700.
Reference Range
170-440 mg/dL
Clinical Significance
Used to evaluate the coagulation status of the bleeding patient and disease states such as DIC, liver disease, inflammatory diseases and malignancies.
