Lab Test : Factor VIII Assay

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Alternate:Hemophilia Factor
Includes:N/A
Department:Hematology
Phone:(937) 641-2627
SQ Code:F8
Available:Day shift only; M-TH
Turnaround:STAT: 24 hours Routine: 1 week
Specimen:Blood
Volume:4.5 mL
Container:Blue top tube (3.2% sodium citrate)
Temperature:Transport within 30 minutes of collection; can be frozen up to two weeks.
Rejection:Tubes not filled to the line. Specimens which are clotted, hemolyzed, diluted with I.V. fluids, or contaminated with heparin.
Normal:50-150% of normal activity.
Uses:To detect specific coagulation Factor VIII activity.
Limitations:Results in patients receiving anticoagulation therapy or with a circulating inhibitor may be limited. Avoid coumadin therapy for 2 weeks and heparin therapy for 2 days.
Method:Photo-optical endpoint
 

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