Vitamin B12

Pathology Tests

₹1,200.00

₹599.00

Vitamin B12 

The Vitamin B12 Test is a blood test used to measure the level of vitamin B12 (cobalamin) in your body. Vitamin B12 is essential for nerve function, red blood cell production, and DNA synthesis. A deficiency can lead to anemia, fatigue, nerve damage, and cognitive problems if left untreated. This test helps in diagnosing B12 deficiency and related health conditions.

Types of Related Tests

  • Vitamin B12 (Cobalamin) Test: Measures total B12 levels in the blood
  • Methylmalonic Acid (MMA) Test: Sometimes ordered to detect early B12 deficiency
  • Homocysteine Test: May be used alongside to evaluate B12 or folate deficiency
  • Intrinsic Factor Antibody Test: Used to diagnose pernicious anemia (an autoimmune cause of B12 deficiency)

Uses of the Vitamin B12 Test

  • Diagnose vitamin B12 deficiency
  • Evaluate cause of anemia (especially megaloblastic anemia)
  • Investigate neurological symptoms like numbness, tingling, or memory loss
  • Monitor patients on long-term vegetarian or vegan diets
  • Check B12 levels in individuals with digestive disorders (e.g., Crohn’s disease, celiac disease)
  • Monitor patients after gastric bypass surgery or those on medications that affect absorption (like metformin or antacids)

Preparation

  • Fasting: Sometimes recommended (6–8 hours), but not always necessary — follow your doctor's instructions
  • Medications: Inform your doctor about supplements or medications, especially B12 shots, multivitamins, or antibiotics
  • Alcohol/Caffeine: Best avoided before testing, as they may interfere with results
  • Timing: Morning sample preferred for consistency

Frequently Asked Questions (FAQs)

1. What is the Vitamin B12 test used for?
It checks the level of vitamin B12 in your blood to detect deficiencies and related health problems.

2. What are symptoms of low B12?
Fatigue, weakness, pale skin, numbness, memory issues, and mood changes.

3. Who should get tested?
People with anemia, nerve issues, poor diet, elderly individuals, vegetarians/vegans, or those with digestive disorders.

4. Is fasting required?
Sometimes — your doctor may advise fasting for more accurate results.

5. What are normal B12 levels?
Typically between 190–950 pg/mL, but this may vary slightly by lab.

6. How is B12 deficiency treated?
Through oral supplements, dietary changes, or vitamin B12 injections, depending on severity.

7. Can high B12 levels be harmful?
Excess B12 from diet or supplements is usually excreted, but very high levels might indicate liver issues or other conditions and should be evaluated by a doctor.

8. When will I get the results?
Usually within 24 to 48 hours after the sample is collected.


Includes 1 Test Parameters

  • Vitamin B12

Test Preparations:

  • No Special Preparation

TAT: 16-24 Hours*

Frequenty Asked Questions

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