Vitamin B12 and Folate

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Also known as: Vitamin B12 or Cobalamin; Folic Acid; RBC folate
Formal name: Vitamin B12 and Folate (or Folic Acid)

At a Glance

Why Get Tested?

To help diagnose the cause of anaemia or neuropathy (nerve damage), to evaluate nutritional status in some patients, to monitor effectiveness of treatment for B12 or folate deficiency

When to Get Tested?

When you have large red blood cells, specifically when you have symptoms of anaemia and/or of neuropathy. When you are being treated for vitamin B12 or folate deficiency

Sample Required?

A blood sample taken from a vein in your arm

Test Preparation Needed?

Fasting is not required for a standard vitamin B12 test. Certain medicines and pregnancy may affect the test results; your heathcare professional will advise you on which ones to stop taking.