Factor Inhibitor Assay
Order Name
FACTR INHB
Test Number: 1502325
Revision Date 10/08/2024
Test Number: 1502325
Revision Date 10/08/2024
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Factor Inhibitor Assay
|
Clot Detection | 13591-3 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 5.4 mL | Whole Blood | Sodium Citrate 3.2% (Blue Top) | Room Temperature |
| Alternate 1 | 3 mL | Double Spun Plasma | Sterile, Capped Plastic Tube | Frozen |
| Instructions | Please indicate anticoagulant therapy - AND - the suspected factor inhibitor. Collect Two Sodium Citrate 3.2% (Blue Top) tubes. 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 | Specific factor inhibitors are immunoglobulins with specificity for a single coagulation protein. The most common specific inhibitors are antibodies produced in relation to Factor 8:C. |
| CPT Code(s) | 85335 |
| Lab Section | Coagulation |