Vitamin B12 / Cyanocobalamin: What It Detects, Normal Range

Overview

The Vitamin B12 / Cyanocobalamin, Serum test measures the concentration of Vitamin B12 (Cyanocobalamin) in the blood. Vitamin B12 is an essential water-soluble vitamin required for the production of healthy red blood cells, proper nerve function, DNA synthesis, and energy metabolism. A deficiency of Vitamin B12 can lead to megaloblastic anemia, fatigue, weakness, numbness or tingling in the hands and feet, memory problems, balance issues, and neurological complications. This test is commonly recommended for individuals with symptoms of vitamin deficiency, anemia, poor nutrition, gastrointestinal disorders, or those following vegetarian or vegan diets.

What It Measures

Why Take This Test?

• To diagnose Vitamin B12 deficiency. To investigate fatigue
• weakness
• dizziness
• or anemia. To evaluate numbness
• tingling
• memory problems
• or nerve-related symptoms. To assess nutritional status in vegetarians
• vegans
• and older adults. To monitor Vitamin B12 replacement therapy. To support routine preventive health checkups.

How to Prepare

• 1No fasting is required. Inform your healthcare provider if you are taking Vitamin B12 supplements or receiving Vitamin B12 injections. Share details of all medications and dietary supplements you are taking
• 2as some may influence the results. Follow any additional instructions provided by your healthcare provider.

Description

Measures the level of Vitamin B12 in the blood to assess nutritional status, detect deficiency, and support nerve health and red blood cell production.