Deficiencies can occur when you don’t get enough B-12 from your diet or when your body can’t use it properly. Typically, vitamin B-12 deficiencies can be detected through the vitamin B-12 test.

Uric acid is a waste product the body produces as it breaks down purines. The body then removes it through urine and stool. A person can take a uric acid test to determine the uric acid level in their ...