D-Dimer Test for Fibrin Derivatives

CERNER / EPIC MNEMONIC: D-DIMER
POE DESCRIPTION: D-DIMER FIBRIN DERIVATIVES; D-DIMER
CPT CODE: 85378
DAYS PERFORMED: Daily, 24 hours
TURNAROUND TIME: Routine: 4 hours. Stat: 1 hour
SPECIAL INSTRUCTIONS: Pediatric tubes must be fully drawn. Do not freeze.¿ If specimens cannot be sent to the lab within four hours, separate and refrigerate the plasma. This test cannot be added onto an existing sample more than 24 hours old.
CONTAINER TYPE:

Blue top sodium citrate tube

COLLECTION:

See Section - " Specimen Collection Guidelines" - Coagulation Specimens. Pediatric tubes must be completely filled.

SPECIMEN REQUIREMENTS:

Blood, 4.5 mL tube or pediatric 1.8 mL or 2.6 mL tube

REJECTION CRITERIA: Specimen hemolyzed; Hct >55%; Lipemic specimen
MINIMUM VOLUME: 3.5 mL blood (1.0 mL plasma)
HANDLING INSTRUCTIONS: Transport the specimen to the laboratory as soon as possible. Specimen MUST be received and spun down within 4 hours after collection.
REFERENCE RANGE: Normal: <0.6 ug/mL
TEST SYNONYM(S):Cross-Linked Fibrin Derivatives; Fibrin Derivatives, Cross Linked