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HelpTest Code 5INHT Factor V Inhibitor Profile, Technical Interpretation
Specimen Required
Only orderable as part of a profile. For more information see 5INHE / Factor V Inhibitor Evaluation, Plasma.
Useful For
Technical interpretation of inhibitor to factor V testing
Method Name
Only orderable as part of a profile. For more information see 5INHE / Factor V Inhibitor Evaluation, Plasma.
Technical Interpretation
Reporting Name
FV Inhib Profile Tech InterpSpecimen Type
Plasma Na CitSpecimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Plasma Na Cit | Frozen | 14 days |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Clinical Information
Significant bleeding can result from the presence of a coagulation factor inhibitor and could be life threatening. Whether the inhibitor is present due to hemophilia or is of an acquired nature, it greatly complicates the treatment process of a decreased factor level. The titer of the inhibitor may determine the mode of treatment. Bethesda units are a standardization to give a uniform definition of an inhibitor.
Reference Values
Only orderable as part of a profile. For more information see 5INHE / Factor V Inhibitor Evaluation, Plasma.
An interpretive report will be provided.
Interpretation
When testing is complete, if factor activity results fall within clinically normal ranges, an interpretive comment will be provided noting that inhibitor testing was not indicated and, therefore, not performed. If factor activity indicates the performance of inhibitor screen testing, an interpretive comment will be provided noting the presence or absence of a factor V inhibitor.
Cautions
Occasionally, a potent lupus-like anticoagulant may cause false-positive testing for a specific factor inhibitor (eg, factor VIII or IX).
Method Description
If the factor V activity level is normal or elevated, a computer-generated interpretive comment indicating inhibitor testing was not indicated and was not performed will be provided.
Day(s) Performed
Monday through Friday
Report Available
3 to 5 daysSpecimen Retention Time
7 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
Not ApplicableCPT Code Information
85390
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| 5INHT | FV Inhib Profile Tech Interp | 69049-5 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 5INHT | FV Inhib Profile Tech Interp | 69049-5 |