Diagnostic test
Vitamin B12
About test
What does Vitamin B12 measure?
The Vitamin B12 test measures the level of vitamin B12 in the body. Vitamin B12 is important for red blood cell formation, nerve function, and DNA production. This test may be used to help evaluate symptoms such as tiredness, weakness, numbness or tingling, memory concerns, or certain types of anemia. It may also help assess possible vitamin B12 deficiency or monitor levels in people at risk of low intake or absorption problems.
This overview is educational. Use the recorded preparation, sample and lab-partner details below for collection guidance, and confirm any missing information before collection.
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Prices, report times and availability are shown from the catalog records for each eligible partner.
Sagepath Labs
- Sample for analysis
- Serum (1 mL)
- Report time
- 11:00/18:00
Preparation and specimen requirements can vary by test and laboratory. Follow the instructions shown for your selected partner and any advice from your healthcare professional.