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Test Code 11_IS Factor XI Inhibitor Screen, Plasma

Reporting Name

Factor XI Inhib Scrn

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Detecting the presence of a specific factor inhibitor directed against coagulation factor XI

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


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.


Specimen Type

Plasma Na Cit

Specimen 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

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.

Day(s) Performed

Monday through Friday

Report Available

1 to 3 days

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