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HelpTest Code FDP Fibrin Split Products (FSP) LAB761
Test Method
Latex Agglutination, Thrombo-Welco Test; Remel
Specimen Requirement
2 mL whole blood is required.
Additional Specimen Collection Information
Collect blood in a special vacuum tube provided in the
Thrombo-Welco Test kit. The tube will draw only 2 mL total
volume.
Place the 2 ml Thrombo-Welco tube in a 37°C
waterbath/incubator
for 30 to 60 minutes to ensure complete clotting. Centrifuge
the
tube and transfer the serum to a glass tube until ready to
test.
After clear serum has been collected, the sample may be
stored refrigerated for up to one week or frozen for
a
longer periods of time.
Reference Values
Negative
Mean normal serum FDP is 4.9
±
2.8 mcg/mL. FDP levels are calculated by a factor of 2 mcg/mL,
therefore, a 1:5 dilution corresponds with 10 mcg/mL and a 1:20
dilution corresponds with 40 mcg/mL. Normal or slightly
elevated
samples will yield negative results in both dilutions.
Performance
Testing is performed Monday through Sunday.
Routine: Typically completed within 4 hours after the
speicmen arrives at the testing site
STAT: Typically completed within 1.5 hours after the
specimen
arrives at the testing site
Useful For
Determine the amount of fragment proteins present in the
blood
released when a clot and fibrin net dissolve, presence of
excessive
amounts of FDP in the circulation can indicate a clotting
disorder
LOINC Code Information
29991-7 Fibrin+Fibrinogen Fragments [Mass/Volume] In Serum
By
Latex Agglutination
CPT Code Information
85362 Coagulopathy Testing: Fibrin
degradation (split) products (FDP)(FSP),
agglutination
slide, semiquantitative