Intrinsic Factor Blocking Antibody Blood Test

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Feature	Labcorp	Quest Diagnostics
Price	Coming soon	$25.49
Results in	—	~5 business days
Sample type	—	Blood Serum
Require fasting	—	No

About the test

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.

Included biomarkers & Reference ranges

Biomarker	Reference range
Intrinsic Factor Blocking Antibody Measures antibodies that block intrinsic factor, a protein needed to absorb vitamin B12, used to help evaluate pernicious anemia as a cause of B12 deficiency.	—

Reference ranges vary by lab, age, and sex (M/F). Your report shows your exact range. Click any biomarker to see its optimal range and what your results mean.

Preparation

Collect at least a week after Vitamin B12 injection therapy.

How it works

1. Order online No referral or insurance
2. Get a requisition By email in 24–72 hours
3. Visit a draw center Bring a matching photo ID
4. Get results Securely by email

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Consultations

Not sure how to read your results? We can help.

Schedule a consultation with a Hormunity specialist. We’ll walk through every marker, interpret what it means for you, and map out the next steps for your care.

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