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HelpTest Code DDMR D-Dimer
Specimen Type
Blood.
Preferred Collection Container
BLUEAcceptable Collection Container
BLUE (3.2% buffered sodium citrate)
Collection Instructions
Routine venipuncture. If multiple tests are being drawn, the recommended order of draw is as follows: blood cultures, sodium citrate tubes, gel separator/plain serum plastic tubes, heparin tubes, EDTA tubes. A special tube should be obtained from the laboratory for hematocrits over 55%. Specimens should be transported as soon as possible to the Clinical Laboratory.
Collection Volume
2.7 mL in 2.7 mL tube
Minimum Collection Volume
1.8 mL in 1.8 mL tube
Rejection Criteria
Specimens that are clotted, hemolyzed, diluted with IV fluid, received more than 4 hours after collection, insufficient volume, improperly labelled.
Specimen Storage and Stability
For testing delayed longer than 4 hours- centrifuge sample for 15 mins at 1500g and separate plasma. Transfer once-centrifuged, citrate plasma into a plastic tube. Sample should be frozen in a frost-free -20 C freezer. Sample must remain frozen until testing is performed.
Day(s) and Time(s) Performed
Monday through Sunday, 24 hours
EPIC Code
LAB313
Turn Around Time
4 hours.
Lab Department
Hematology
Alias
Cross-Linked Fibrin Derivatives; Fibrin Derivatives, Cross Linked; D-Dimer; Quantitative D-Dimer;