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HelpD-Dimer
Additional Codes
Epic# -
LAB313
Cerner name(s):
- D-Dimer
- DDimer
Performing Lab(s)
Memorial-Belleville & Memorial-Shiloh
Specimen Requirement (s)
Specimen Type: Plasma
Container/Tube: Citrated light-blue top
Specimen Volume: full tube
Specimen Minimum Volume: full tube
Collection Instructions: Avoid hemolysis
Unacceptable Conditions
- Short draws
- clotted specimens
Day(s)/Shift(s) Test Set Up and Turnaround Time
Sunday through Saturday
Hours: 24 hours
Turnaround Time:
STAT: 45 minutes
Routine: less than 1 hours from receipt.
Transport and Stability
Test must be performed within 8 hours of collection.
Transport temperature: Ambient to lab
Analyte Stability:
Ambient: 24 hours
Refrigerated: 24 hours
Frozen: 72 hours
Reference Values
D-Dimer
|
Age |
Reference Values |
|
0 – 1 month |
0 – 1199 ng/mL FEU |
|
>1month – 12 months |
0 – 899 ng/mL FEU |
|
> 1 year – 5 years |
0 – 749 ng/mL FEU |
|
>5 years - 150 years |
0 – 499 ng/mL FEU |
CPT/LOINC Codes
85379
Interpretive Data
FDA approved the D-dimer, in conjunction with a low or moderate pretest probability score, to exclude venous thromboembolic events (VTE) (PE and DVT) in outpatients when the D-dimer result is < 500 ng/ml FEU.
Evidence supports using an age-adjusted D-dimer cut-off for outpatients older than 50 (age x 10) to improve specificity without sacrificing sensitivity. Example: age 68, VTE cut-off 680 ng/ml FEU. References; Schouten HT et al. Brit Med J. 2013;346:f2492. Raja AS et al. Annals Int Med. 2015;163:701-11.”
Current interpretive data was last revised on 11/19/2019.