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HelpTest Code LAB1046 Factor XI Inhibitor Screen, Plasma
Additional Codes
| Mayo Test ID |
|---|
| 11_IS |
Method Name
Only orderable as part of a profile. For more information see:
11INE / Factor XI Inhibitor Evaluation, Plasma
ALBLD / Bleeding Diathesis Profile, Limited, Plasma
APROL / Prolonged Clot Time Profile, Plasma
Optical Clot-Based
Reporting Name
Factor XI Inhib ScrnSpecimen Type
Plasma Na CitSpecimen Minimum Volume
2 mL
Specimen 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 |
Reference Values
Only orderable as part of a profile. For more information see:
11INE / Factor XI Inhibitor Evaluation, Plasma
ALBLD / Bleeding Diathesis Profile, Limited, Plasma
APROL / Prolonged Clot Time Profile, Plasma
Negative
Day(s) Performed
Monday through Friday
Report Available
1 to 3 daysSpecimen Retention Time
7 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
85335
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| 11_IS | Factor XI Inhib Scrn | 80603-4 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 7804 | Factor XI Inhib Scrn | 80603-4 |
Ordering Guidance
Specimen Required
Only orderable as part of a profile. For more information see:
11INE / Factor XI Inhibitor Evaluation, Plasma
ALBLD / Bleeding Diathesis Profile, Limited, Plasma
APROL / Prolonged Clot Time Profile, Plasma
For more information see Coagulation Guidelines for Specimen Handling and Processing.
Useful For
Detecting the presence of a specific factor inhibitor directed against coagulation factor XI
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 XI inhibitor.