Diagnostic test
ACTIVE VITAMIN B12 (HOLOTRANSCOBALAMIN)
About test
What does ACTIVE VITAMIN B12 (HOLOTRANSCOBALAMIN) measure?
This test measures holotranscobalamin, the biologically active form of vitamin B12 available for use by the body. It may help assess vitamin B12 status, including possible early or functional deficiency, and may be used when evaluating concerns related to low B12 availability. Results are interpreted alongside clinical history and other laboratory findings.
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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Thyrocare
- Sample for analysis
- Confirm with the collection team
- Report time
- To be confirmed
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.