Intrinsic factor antibodies, serum

Alphabetical Test listing

Intrinsic factor antibodies, serum-13349

Intrinsic factor antibodies, serum
Intrinsic factor Abs, serum

Confirming the diagnosis of pernicious anemia (PA) caused by intrinsic factor deficiency


No specimen should be collected from a patient currently undergoing B12 therapy less than one week after the last B12 injection.

2.0 mL
1.0 mL
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

  1. Allow sample to clot
  2. Spin
  3. Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum, within two (2) hours of sample collection

Refrigerated (preferred) - 14 days

Ambient - 14 days

Frozen - 14 days

Freeze/thaw cycles - stable x 3

  • Plasma specimen
LabCorp Burlington (010413): R-LC
Mo - Fr
2 - 4 days

Immunochemiluminometric assay (ICMA)


0.0 - 1.1 AU/mL

Result 31443-5