Sign in →

Test Code ZG179 Intrinsic Factor Blocking Antibody, Serum

Additional Codes

Ordering Mnemonic Mayo Test ID
IFBA IFBA

Reporting Name

Intrinsic Factor Blocking Ab, S

Useful For

Confirming the diagnosis of pernicious anemia

Testing Algorithm

See Vitamin B12 Deficiency Evaluation in Special Instructions.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum


Specimen Required


Patient Preparation: For patients receiving vitamin B12 injections wait a minimum of 2 weeks after last injection before obtaining specimen.

Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 1 mL


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated (preferred) 14 days
  Frozen  14 days

Special Instructions

Reference Values

Negative

Day(s) and Time(s) Performed

Monday through Friday; 6 a.m.-12 a.m.

Saturday; 6 a.m.-6 p.m.

Test Classification

This test has been cleared or approved by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

86340

LOINC Code Information

Test ID Test Order Name Order LOINC Value
IFBA Intrinsic Factor Blocking Ab, S 31444-3

 

Result ID Test Result Name Result LOINC Value
IFBLA Intrinsic Factor Blocking Ab, S 31444-3
CMT31 Comment 48767-8

Method Name

Immunoenzymatic Assay