Name: Fibrin Monomer
Test Name: Fibrin Monomer
Health Link Test Code: HCFIBMON
LIS Test Code: FIBMON
CPT Code(s): 85362
Fibrin monomers, intermediate products between fibrinogen and fibrin, are produced during the proteolysis of fibrinogen by thrombin. This test is useful in the assessment of DIC in a patient.
Days Performed: Daily, 24 hours.
In-Lab Turnaround Time: 1 day.
Stat In-Lab Turnaround Time: 1 hour.
Collection Container: Light blue top (3.2% NaCitrate)
Fibrin monomer results are greatly affected by specimen collection procedure and technique. The venipuncture MUST be atraumatic to avoid hemolysis and contamination with tissue factors and platelets. Tube must be allowed to fill up to "fill" line located on tube.
Collection Volume: 3.5 mL
Pediatric Collection Volume: 1.8 mL
4 hours unspun; 2 hours if spun and opened
Sample Analyzed: Plasma
Testing Volume: 1 mL
Pediatric Testing Volume: 0.5 mL
Centrifuge specimen to yield platelet poor plasma (platelet count should be less than 10 K/uL). Separate plasma and transfer to plastic tube or vial.
Transport whole blood specimen at room temperature to UWHC Hospital Laboratory within 4 hours of collection. See "Specimen Processing" for instructions if transport criteria can not be met.
Transport frozen plasma aliquot on dry ice to UWHC Hospital Laboratory.
Hemolyzed specimens, clotted specimens, partially filled tubes and whole blood specimens greater than 4 hours old when received by the laboratory are not acceptable.
18 years and up: Negative
Interpretation Type: Expected Results