Factor 8 (VIII) Assay
Order Name
FACTOR 8
Test Number: 1501150
Revision Date 10/08/2024
Test Number: 1501150
Revision Date 10/08/2024
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Factor 8 (VIII) Assay
|
Clot Detection | 3209-4 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 2.7 mL | Whole Blood | Sodium Citrate 3.2% (Blue Top) | Room Temperature |
| Alternate 1 | 1.5 mL | Double Spun Plasma | Sterile, Capped Plastic Tube | Frozen |
| Instructions | Please indicate anticoagulant therapy. Each 2.7mL Sodium Citrate 3.2% (Blue Top) tube must be filled to the proper level, no hemolysis. Improperly filled tubes can give erroneous results. Whole blood must be transported to lab immediately. If testing cannot be started within 4 hours of collection the specimen must be double spun then 1.5mL plasma aliquot from each tube into individual plastic aliquot tubes and freeze. Do not pool aliquots together! |
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| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Wed |
| Expected TAT | 1-7 Days |
| Clinical Use | This assay measures the clotting ability of factor 8. This assay is used to aid in the diagnosis of hemophilia A, von Willebrand disease, aquired deficiencies or factor 8, the response to factor 8 preparations, and the quality control of factor 8 preparations. |
| CPT Code(s) | 85240 |
| Lab Section | Coagulation |