Book Vitamin B12 Test online with Max Lab. Vitamin B12 test is used to measure the level of B12 in the blood to assess nerve function, red blood cell formation, and overall health. Max Lab, one of the most trusted diagnostic labs in India, offers a wide range of diagnostic tests, including Vitamin B12 tests, full-body checkups, thyroid tests, diabetes tests, and more. Book via call or prescription! Get fast and accurate reports! For more details about vitamin B12 test price,