Folate
Measures folate (folic acid) levels.
About this test
Folate testing helps assess a vitamin needed for normal blood cell production.
Common reasons for testing
- Evaluation of selected cases of anemia or suspected poor nutrition or absorption.
These are examples of clinical uses. Your history and symptoms determine whether testing is appropriate.
What to expect
A small blood sample is taken from a vein in your arm. You may feel a brief pinch and have mild bruising. Tell the person collecting your sample if you have fainted with needles or take a blood thinner; keep pressure on the site afterward.
Appointment length
Your visit is expected to take about 15 minutes at our West Ashley location.
Categories
Preparation
- Ask whether the laboratory requests fasting for the specific folate assay. Report supplements and their timing.
- Bring a list of medicines and supplements, including biotin, vitamins, and hormones. Do not stop or change prescribed medicines unless your clinician tells you to.
Order requirement
No outside order needed
Understanding your results
- Recent food or supplements can affect serum folate.
- B12 deficiency should also be considered; folate alone can obscure its blood-count findings.
What happens next?
Review the report with your clinician alongside your symptoms, medical history, and earlier results. A value outside the reference range does not always mean disease, and a normal result does not explain every symptom. Confirm who will arrange any repeat or additional testing.
Sources & further reading
This patient summary draws on published clinical literature and professional guidance. Patient resources are identified separately below. Preparation also depends on your specific order and the collecting laboratory or imaging team.
- Guidelines for the diagnosis and treatment of cobalamin and folate disorders
British Journal of Haematology, 2014
Content updated October 11, 2026. General education; individual advice comes from your care team.
Know the cost before your visit
Palmetto Preventive is a direct-pay service. You will see clear payment terms before your booking is finalized — no surprise lab bill.
Self-pay price
One transparent price for this test. Payment terms are presented before your booking is finalized.
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Transparent self-pay pricing — you see the price before you book.
No surprise lab bill after your visit.
If testing is not approved, your payment is refunded in full.
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