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The Intrinsic Factor Antibody Test is a simple blood test that checks for antibodies that can block vitamin B12 absorption. You may also see it called the intrinsic factor blocking antibody test, anti intrinsic factor antibodies, or IF antibody test. If your doctor ordered it, you can book at participating labs on LabFinder.
This test, sometimes listed as IFBA or intrinsic factor blocking antibodies, looks for immune proteins that attack intrinsic factor. Intrinsic factor is a protein in your stomach that helps your body absorb vitamin B12. Finding these antibodies can support a diagnosis like pernicious anemia or other causes of B12 problems.
Common reasons: low vitamin B12 on prior tests, anemia with large red blood cells, numbness or tingling in hands or feet, trouble with balance, memory changes, smooth or sore tongue, or concern for pernicious anemia or autoimmune gastritis. Your doctor may pair this with other B12 and anemia tests.
You will check in, confirm your order, and have a small blood sample taken from your arm. The skin is cleaned, a quick draw is done, and a bandage is placed. Most visits take about 10 to 25 minutes from arrival to finish. You can go about your day after the draw.
Yes, this is a quick, routine blood draw and is considered very safe. You might feel a quick pinch, notice a small bruise, or feel a little lightheaded for a moment afterward, but those effects usually fade quickly. Be sure to tell the staff if you take blood thinners, have a bleeding disorder, or if you have fainted during blood draws before. They will take extra care to keep you comfortable. Very high dose biotin supplements can affect some lab methods, so share what you take.
No special fasting for most people: eat and drink normally unless your doctor says otherwise. Stay hydrated: water before your visit can make the draw easier. Bring your essentials: photo ID, insurance card, and the lab order. Share medicines and supplements: include vitamins and biotin. Do not stop medicines on your own: follow your doctor’s advice. Always follow any instructions from your doctor or the lab and bring prior results if you have them.
Pernicious anemia, vitamin B12 deficiency, autoimmune gastritis, fatigue and weakness from anemia, nerve symptoms like numbness or tingling, and memory or mood changes tied to low B12. Results are one piece of the picture. Your doctor will review them with your history and symptoms before advising next steps.
You can compare locations, see time slots, and book online at participating labs. It is easy to search for a convenient location in your area or by city or ZIP. Coverage varies by plan and provider, so check your benefits or ask the lab when you book. Results timing: many labs post results in a few business days, though timing can vary by location.
Book on LabFinder: find a lab today on our lab finder and request a test doctor guided.
The information on this page and throughout the LabFinder website and mobile app is for general informational purposes only. It is not intended to serve as medical advice, diagnosis, or treatment. For personalized medical advice or specific health concerns, please consult your healthcare provider directly.
Booking a Intrinsic Factor Antibody Test is easy using LabFinder. Just choose your location and enter your insurance information to find the closest Intrinsic Factor Antibody Test near you.
To make a same-day appointment for a Intrinsic Factor Antibody Test, just choose your location and your insurance information to find the closest Intrinsic Factor Antibody Test location near you. If there's availability for a same-day appointment at a nearby lab location, then you will be able to book it easily through LabFinder.
LabFinder allows you to easily schedule a Intrinsic Factor Antibody Test. You can search by location and insurance to easily book a Intrinsic Factor Antibody Test near you.
LabFinder allows you to easily make an appointment for a Intrinsic Factor Antibody Test online. To make an appointment for a Intrinsic Factor Antibody Test online, just choose your location and your insurance information to find the closest Intrinsic Factor Antibody Test near you.
Yes, you can get a Intrinsic Factor Antibody Test without insurance. LabFinder allows you to search and select "Self-Pay" when booking a Intrinsic Factor Antibody Test. While pricing for the test may not be immediately available, please check by calling the lab company directly for pricing.
