| Test CODE | NAME |
|---|
X443
D-Dimer
| Methodology: | Turbidimetric immunoassay |
| Performed: | Sun-Sat |
| Reported: | 24 hours |
| Specimen Required: | Collect: Sodium citrate 3.2% (Light Blue-top) tube - 1 ml plasma
Specimen Preparation: Draw blood into a light blue top tube containing 3.2% sodium citrate. Fill to the proper level, indicated by a fill line on the tube. Gently invert six times to mix. Centrifuge the citrated blue-top tubes as soon as possible (within 60 minutes) at adequate time and speed to obtain platelet-poor plasma (<10,000/µL). Using a plastic pipette, remove 1 mL of plasma and transfer to a plastic aliquot tube and label with patient's name and a second patient identifier (e.g., date of birth, medical record number).
Storage/Transport Temperature: CRITICAL FROZEN.
Separate specimens must be submitted when multiple tests are ordered.
Unacceptable Conditions: Serum. EDTA plasma, or hemolyzed specimens.
Stability: After separation from cells: Room Temperature: 2 hrs; Refrigerated: Unacceptable; Frozen: 30 days
Reject Criteria: Gross hemolysis Gross lipemia Clotted specimens Improper blood to citrate ratio Improper tube type Mislabeled specimen Specimen received without identifiers Frozen, unspun whole blood collection Non-frozen plasma specimens received > 2 hours after collection
NOTE: * This test is approved for all states. * Accu Reference Medical Laboratory |
| CPT Code(s): | 85379 |