Intrinsic Factor Blocking Antibody

Test Code

IFBA

Alias/See Also

LAB857

CPT Codes
<p>86340</p>

Preferred Specimen

Patient Preparation: Samples should not be collected from a patient who has received vitamin B12 injection therapy within the past week.

Specimen Type: Serum

Collection Container/Type

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Minimum Volume

0.3 mL

Instructions

Samples should not be collected from a patient who has received vitamin B12 injection therapy within the past week.

Transport Container

Plastic screw-cap vial

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days

Refrigerated: 7 days

Frozen: 28 days

Methodology

Immunoassay (IA)

Setup Schedule

Set up: Tues-Sat; Report available: 1-2 days

Report Available

1-2 days

Reference Range

Negative

Clinical Significance

Intrinsic Factor, produced by cells lining the stomach, binds Vitamin B12 (cyanocobalamin) to facilitate absorption of the vitamin. Blocking antibody impedes the action of Intrinsic Factor as observed in approximately half of the patients who develop pernicious anemia.

Performing Laboratory
Quest Diagnostics Nichols Institute 14225 Newbrook Drive Chantilly, VA 20153

Last Updated: February 23, 2012

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.