Advanced Diagnostic Laboratories

Collect

Sodium Citrate Light Blue Top 3.2% sodium citrate solution  -2.7 mL Vacutainer® Citrate Tubes with 3.2% buffered sodium citrate solution
BD Vacutainer® Citrate Tubes - 363080 | BD

Specimen Preparation

Onsite [NJH]: Transport to lab within 1 hour.
Do not centrifuge.
Fill to Minimum Fill Indicator on draw tube

Pediatric Collection

Fill to Minimum Fill Indicator on draw tube

Unacceptable Conditions

Clotted Specimen, Insufficient Specimen, Hemolysis

Storage Transport Temp

Storage Transport Temp

Offsite: Specimens collected offsite should be separated from cells within 2 hours of centrifugation and an aliquot placed in appropriately labeled polypropylene or similar plastic tube.

Onsite: Specimens must be transported within 1 hour to the clinical laboratory for processing and testing.


 

Stability

Notes

Light blue top tube requires a minimum volume to assure proper ratio of anticoagulant to whole blood

Performed

Monday - Friday

Methodology

Turbidimetric Immunoassay

Reported

1 hour STAT or routine

Department

Core Lab

Synonyms

D-Dimer, DIMER

Reference Interval

 Age ≤50 years : D-Dimer, quantitative: <0.50 ug/mL FEU 
 Age >50 years : PE/DVT Index: Normal

Interpretation

For patients greater than 50 years old, age adjusted cutoff interpretation is applied using the calculation:  age x 0.01 ug/mL FEU and reported as a qualitative PE/DVT index (Normal/Abnormal) with regards to exclusion for suspected thrombosis. Patients 50 years or older have an association with increased diagnostic yield of non-specific D-Dimer.

CPT Code

85379