D-Dimer
Test Mnemonic
DDMER
CPT Codes
- 85379 - QTY (1)
LOINC ®
48065-7
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Plasma | Sodium citrate (Lt. Blue) | Centrifuge, aliquot and freeze ASAP. | Collection tube must be filled to total fill volume. Inadequately filled tubes will be rejected. NonTesting Sites: Centrifuge, aliquot platelet poor plasma into a separate tube with Epic Beaker label, freeze plasma at -20C, send frozen plasma to Main Campus on dry ice. | |
| 1.8 mL | Whole blood | Sodium citrate (Lt. Blue) | Centrifuge, aliquot and freeze ASAP. | Collection tube must be filled to total fill volume. Inadequately filled tubes will be rejected. NonTesting Sites: Centrifuge, aliquot platelet poor plasma into a separate tube with Epic Beaker label, freeze plasma at -20C, send frozen plasma to Main Campus on dry ice. |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 4 hours |
| Frozen | 4 weeks at < -18 C, if frozen at 4 hours |
Days Performed
Sun - Sat
Turnaround Time
1 - 8 hours
Methodology
| Name | Description |
|---|---|
| Turbidimetric Immunoassay (TUI) |
Reference Range
| D-Dimer | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | < 500 | ng/mL FEU |
Special Info
3.2% sodium citrate is the preferred anticoagulant recommended by CLSI.
Clinical Info
Useful in the evaluation of DIC and fibrinolytic abnormalities. Useful in the evaluation of deep vein thrombosis A negative result (<500 ng/mL) may be helpful in the exclusion of venous thrombosis.