Vitamin B12 Test
Also known as: Cobalamin Test
Category: VitaminsSample: BloodReport in: 1 2 Days
Measures vitamin B12, which is often low in vegetarians and people taking metformin.
Why it's done
- Investigate tiredness, tingling or anaemia
What it measures
Serum vitamin B12.
Preparation
Fasting may be advised.
Normal range
About 200-900 pg/mL
Understanding results
Low B12 can cause anaemia, numbness and memory problems.
Related conditions
Ordered by
Frequently asked questions
Why is the Vitamin B12 Test test done?
Investigate tiredness, tingling or anaemia
How do I prepare for Vitamin B12 Test?
Fasting may be advised.
What is the normal range for Vitamin B12 Test?
About 200-900 pg/mL
Medically reviewed by
Medical review pending
Last updated
9 October 2026
Sources
- ICMR standard treatment workflows
- Reference ranges vary by laboratory - always read your report with your doctor
This information is for general awareness and does not replace advice from a qualified doctor. Do not start, stop or change any medicine without medical advice.