To determine the presence of Vitamin B12 Deficiency, which could be a cause of anemia or neuropathy; to evaluate nutritional status and monitor effectiveness of treatment for Vitamin B12 or Folate deficiency.
When to Get Tested
As part of a routine health monitoring laboratory testing when risk factors or symptoms of the disease are present, when prior results showed low levels, and monitor effectiveness of treatment.
Sample Required
A blood sample is obtained by inserting a needle into a vein in your arm
Test Preparation Needed- None