Folate Test: What It Shows and What It Does Not
Quick answer: A folate test measures folate (vitamin B9) in your blood. Folate helps your body make new cells, including red blood cells. A low level can go along with a certain type of anemia.
About this test
Folate is a water soluble B vitamin found in leafy greens, beans, citrus and fortified grains. Folic acid is the supplement form.
Why is it ordered?
- Looking at the cause of anemia, especially with large red cells.
- Checking people at higher risk of low folate, such as those with limited diet, heavy alcohol use or absorption conditions.
- Reviewing nutrition, often with B12.
What results may show
- A low level can go along with low folate intake or poor absorption.
- Low folate can be one reason red cells become larger than normal.
What this test may not show
- It does not show why folate is low.
- Recent meals and supplements can raise the level.
- Taking folic acid can improve blood counts while hiding a B12 problem, so B12 is often checked as well.
- An abnormal result does not always mean treatment is needed.
How to prepare
- Fasting may be requested. Follow the instruction given when you order.
- Tell your provider about folic acid supplements, multivitamins and medicines.
Where you can get this test
| Option | Price | Includes |
|---|---|---|
| Anemia Panel | $150 | Ferritin, iron, TIBC, B12, folate and the main blood count markers |
A doctor’s visit is not required to order. Order online, then visit our Buffalo Grove or Lake Zurich location for the sample. Review results with your own healthcare provider.
Related tests
Frequently asked questions
What is the difference between folate and folic acid?
Folate occurs naturally in food. Folic acid is the form used in supplements and fortified foods.
Why is folate checked with B12?
Their deficiencies can look alike on a blood count, and folic acid can hide a B12 problem.
Do I need to fast?
You may be asked to. Follow the instruction given when you order.
Sources
Medically reviewed by Rodion Levin, FNP-C, Founder and Medical Director. This page is for general education. It does not diagnose a condition or replace advice from your healthcare provider.
