RBC Folate Test
- Category
- Vitamins
- Sample
- Blood sample taken from a vein in your arm
- Reports () Terms & Conditions Report time varies with time of sample collection.
- In 5 days
- Fasting
- No Fasting
- Age
- 5+ Years
What Is This Test?
Measures folate stored inside red blood cells.
Why this test is performed?
Reflects folate levels over the previous 2–3 months and is less affected by recent meals than serum folate.
Who should take this test?
Fatigue, weakness, tingling or numbness, mouth ulcers, hair fall, vegetarians/vegans, older adults and people with poor diet.
Test Preparation
No fasting needed.
Medical disclaimer · for information only, not medical advice
This article is for general information and education only. It is not medical advice, does not create a doctor–patient relationship, and is not a substitute for consultation with a qualified doctor who has assessed your individual situation. Never delay seeking medical advice because of something you have read here.
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- Report time: In 5 days
- No fasting
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Frequently asked questions
Serum folate shows recent intake; RBC folate reflects longer-term body stores.
No fasting is needed. You can eat and drink normally unless your doctor has advised otherwise.
Blood sample taken from a vein in your arm.
Usually within 3–4 days after the sample reaches the lab. You will receive the report online.
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