Specimen:

Plasma

Collection Medium:

Minimum:

Full draw, any size blue top(mix well). Tube must be at least 90% full.

Testing
Schedule:

24 hrs/day, 7 days a week, including holidays.

Analytic Time:

2 hours (upon receipt in laboratory)

Reference Range:

180-350 mg/dl

Critical value: <80 mg/dl

Comments:

Must be drawn swiftly with a clean venipuncture  (no hematoma). Time 
drawn must be indicated.  Fibrinogen may be performed on the same 
collection tube as Activated Partial Thromboplastin time (aPTT) and 
Prothrombin Time (PT).

Methodology:

Activity by optical clot detection.

Sample
Processing:

Centrifuge within two hours of draw time.
Aliquot serum/plasma into plastic container and cap (glass is not 
acceptable).
Centrifuge a second time at 3500 RPM for 10 minutes and aliquot into a 
new, labeled plastic tube.

Sample
Storage:

Freeze specimen immediately.

Transport
Instructions:

Place specimen into zip-lock type bag, seal bag.
Place requisition into outside pocket of bag.
Place dry ice on top of specimen in styrofoam container.

CPT Code:

85384

See Additional Information:
Hematology Critical Lab Values
Phlebotomy Tubes and Order of Draw