Chromogenic X
| Order Code: | CH10 |
| Order Form: | Laboratory Requisition |
Specimen:
Plasma
Collection Medium:
 |
| Light Blue top tube 2.7 mL (Na Citrate) |
Minimum:
Full draw; 2.7 mL light blue top
Rejection Criteria:
Short drawn tube, clot, traumatic tap (excessive hemolysis).
Testing
Schedule:
0800-1630 Monday through Friday.
Analytic Time:
24-36 hours
Reference Range:
Greater than 50%
Therapeutic reference range is 11-42%
Test
Limitations:
This test is to be used for coumadin monitoring of patients with
positive Lupus anticoagulants.
Methodology:
Activity detection by chromogenic substrate
Sample
Processing:
Centrifuge within two hours of draw time.
Aliquot 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.
Aliquot 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.
Place requisition into outside pocket of bag.
Place dry ice on top of specimen in styrofoam container.
CPT Code:
85260
See also:
Factor II Assay, Plasma
Factor II Assay, Plasma
See Additional Information:
Phlebotomy Tubes and Order of Draw
Phlebotomy Tubes and Order of Draw