| Methodology: |
Clotting
|
| Performed: |
Mon, Wed, Fri
(On call 24 hours for emergencies. If Factor VIII is greater than 20%, no further testing will be performed. If Factor VIII Activity is 20% or less, Bethesda Quantitative, Factor VIII will be performed.)
|
| Reported: |
1-4 days
|
| Specimen Required: |
Collect: Five 5 mL lt. blue (sodium citrate). (Min: Four 5 mL) Refer to the Hemostasis/Thrombosis Specimens section in the front of this User's Guide for specimen collection instructions.
Transport: Two 4 mL aliquots of platelet-poor plasma, frozen. (Min: 5 mL) Submit specimens in two ARUP Standard Transport Tubes.
Pediatric Collection/Transport: 5 mL platelet-poor plasma, frozen.
Remarks: CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered. For hemophiliacs: note dose, date, and time of last factor VIII concentrate infusion.
Unacceptable Conditions: Serum. Nonfrozen and hemolyzed specimens.
Stability: Ambient: 4 hours; Refrigerated: 4 hours; Frozen: 2 weeks
|
|
|