Intrinsic factor antibodies, serum-13349
Test info
Intrinsic factor antibodies, serum
13349
LAB13349
IFA
Intrinsic factor Abs, serum
Confirming the diagnosis of pernicious anemia (PA) caused by intrinsic factor deficiency
Specimen
No specimen should be collected from a patient currently undergoing B12 therapy less than one week after the last B12 injection.
Serum
2.0 mL
1.0 mL
Submission of the minimum volume does not allow for repeat testing
Submission of the minimum volume does not allow for repeat testing
Immediatley following collection, mix sample by gently inverting 5 times
1. Allow sample to clot for a minimum of 30 minutes
2. Spin within two (2) hours of sample collection
Gold serum separator (SST) tube
- Allow sample to clot
- Spin within two (2) hours of sample collection
- Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum
Refrigerated (preferred) - 14 days
Ambient - 14 days
Frozen - 14 days
Freeze/thaw cycles - stable x 3
- Plasma specimen
Performance
LabCorp Burlington (010413): R-LC
Mo - Fr
2 - 4 days
Immunochemiluminometric assay (ICMA)
Clinical and Interpretive info
0.0 - 1.1 AU/mL
Billing
86340
Result 31443-5
Tracking
04/09/2019
11/15/2019
12/29/2023