| Methodology: |
Chromogenic/Inhibition of Xa
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| Performed: |
Sun-Sat
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| Reported: |
Within 24 hours
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| Specimen Required: |
Collect: One 5 ml lt. blue (3.2 % sodium citrate). Refer to the Hemostasis/Thrombosis Specimens section in the front of this User's Guide for additional specimen collection instructions.
Transport: 2 mL platelet-poor plasma, frozen. (Min: 1.5 mL)
Pediatric Collection/Transport: 1.5 mL platelet-poor plasma, frozen.
Remarks: Record heparin type on test request form. Sample should be centrifuged within one hour of collection.
Unacceptable Conditions: Serum, hemolyzed samples, EDTA, oxalate, heparin, plasma separator tubes, and samples refrigerated more than eight hours.
Stability: After separation from cells: Ambient: 4 hours; Refrigerated: 8 hours; Frozen: 2 weeks
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