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Test Directory

D-Dimer (Quantitative)

Test Summary

A test ordered to assist in ruling out the presence of a blood clot in extremities, lung, heart or brain and to suggest or eliminate the need for further testing. The assay may also be used to diagnosis Disseminated Intravascular Coagulation (DIC) and to monitor treatment effectiveness.

Aliases

  • D Dimer
  • FSP

Specimen Collection

Special Instructions

N/A

Preferred Specimen

1 plastic (2.7mL) completely filled 3.2% Sodium Citrate (light blue top) tube(s)

Minimum Volume

1 Frozen Capped aliquots of Sodium Citrate plasma (Polypropylene tubes recommended)

Instructions

Use standard venipuncture and disposal techniques.

Collect the required quantity of Sodium Citrate (light blue top) tubes.

If unable to process specimens within 4 hours of collection then call CompuNet transportation for a STAT pick-up at (937) 297-8262 option 1.

Sodium Citrate (light blue top) tube(s):
Process immediately (stable only 8 hours), following instructions below:

Note: We recommend aliquot tubes to be made of polypropylene plastic as this material is safe to freeze at <-70 degrees C.

1. Centrifuge capped Sodium Citrate (light blue top) tubes at 3000 rpm for 10 minutes, or at speed and time required to consistently produce Platelet Poor Plasma (<5/kmm3).

2. Carefully remove the plasma from all Sodium Citrate (light blue top) tubes; avoid disturbing the WBC/buffy coat.
Note: If the plasma shows any hemolysis, it must be recollected.

3. Aliquot at least 1mL of plasma into each aliquot tubes labeled “plasma.” Refer to the Minimum Volume section above for the number of aliquots required per test.

4. Finally, place all aliquots into a <-20°C freezer within 8 hours.
Note: Aliquots must remain frozen until they are picked up by the CompuNet courier. Call CompuNet transportation department if frozen specimen boxes are needed.

Patient Preparation

N/A

Storage

Whole blood Sodium Citrate (light blue top) tube(s). Capped aliquots of Sodium Citrate plasma Frozen (Polypropylene tubes recommended)

Transport Temperature

Room Temperature: Whole blood Sodium Citrate (light blue top) tube(s)
Refrigerated: Unacceptable for Sodium Citrate (light blue top) tubes whole blood or capped plasma aliquots
Frozen: Capped aliquots of Sodium Citrate plasma

Specimen Stability

  • Room Temperature: Whole blood Sodium Citrate (light blue top) tube(s) = 8 hours
  • Refrigerated: Unacceptable for Sodium Citrate (light blue top) tubes whole blood or capped plasma aliquots
  • Frozen: Capped aliquots of Sodium Citrate plasma (Polypropylene tubes recommended) = 4 weeks at -20o

Limitations

N/A

Other Acceptable Specimens

N/A

Unacceptable Specimens

Rejected for hemolysis, clotted, improper fill, incorrect specimen type, thawed frozen aliquots, refrigerated plasma or blood, expired test tubes, >8 hours old if not processed into separated frozen plasma vials.

Order Code

DDIM

EPIC (Premier) Code

LAB159

Includes

N/A

CPT Code

  • 85379

Billing Code

  • 300467

CPT Statement

Methodology

Immunoturbidimetric Assay

FDA Status

FDA approved

Physician Attestation of Informed Consent

N/A

Testing Laboratory

CompuNet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine OH, 45439

Department

Hematology

Reference Range

<0.50 ug/mL FEU

Setup Schedule / Expected Turnaround Time

Daily; Report available: 1 day

Specimen Collection

Special Instructions

N/A

Preferred Specimen

1 plastic (2.7mL) completely filled 3.2% Sodium Citrate (light blue top) tube(s)

Minimum Volume

1 Frozen Capped aliquots of Sodium Citrate plasma (Polypropylene tubes recommended)

Instructions

Use standard venipuncture and disposal techniques.

Collect the required quantity of Sodium Citrate (light blue top) tubes.

If unable to process specimens within 4 hours of collection then call CompuNet transportation for a STAT pick-up at (937) 297-8262 option 1.

Sodium Citrate (light blue top) tube(s):
Process immediately (stable only 8 hours), following instructions below:

Note: We recommend aliquot tubes to be made of polypropylene plastic as this material is safe to freeze at <-70 degrees C.

1. Centrifuge capped Sodium Citrate (light blue top) tubes at 3000 rpm for 10 minutes, or at speed and time required to consistently produce Platelet Poor Plasma (<5/kmm3).

2. Carefully remove the plasma from all Sodium Citrate (light blue top) tubes; avoid disturbing the WBC/buffy coat.
Note: If the plasma shows any hemolysis, it must be recollected.

3. Aliquot at least 1mL of plasma into each aliquot tubes labeled “plasma.” Refer to the Minimum Volume section above for the number of aliquots required per test.

4. Finally, place all aliquots into a <-20°C freezer within 8 hours.
Note: Aliquots must remain frozen until they are picked up by the CompuNet courier. Call CompuNet transportation department if frozen specimen boxes are needed.

Patient Preparation

N/A

Storage

Whole blood Sodium Citrate (light blue top) tube(s). Capped aliquots of Sodium Citrate plasma Frozen (Polypropylene tubes recommended)

Transport Temperature

Room Temperature: Whole blood Sodium Citrate (light blue top) tube(s)
Refrigerated: Unacceptable for Sodium Citrate (light blue top) tubes whole blood or capped plasma aliquots
Frozen: Capped aliquots of Sodium Citrate plasma

Specimen Stability

  • Room Temperature: Whole blood Sodium Citrate (light blue top) tube(s) = 8 hours
  • Refrigerated: Unacceptable for Sodium Citrate (light blue top) tubes whole blood or capped plasma aliquots
  • Frozen: Capped aliquots of Sodium Citrate plasma (Polypropylene tubes recommended) = 4 weeks at -20o

Limitations

N/A

Other Acceptable Specimens

N/A

Unacceptable Specimens

Rejected for hemolysis, clotted, improper fill, incorrect specimen type, thawed frozen aliquots, refrigerated plasma or blood, expired test tubes, >8 hours old if not processed into separated frozen plasma vials.

Billing

CPT Code

  • 85379

Billing Code

  • 300467

CPT Statement

Result Information

Methodology

Immunoturbidimetric Assay

Testing Laboratory

N/A

Reference Range

<0.50 ug/mL FEU

Setup Schedule / Expected Turnaround Time

Daily; Report available: 1 day