A vitamin B6 plasma blood test is a type of test that measures the levels of vitamin B6 in the blood. Vitamin B6 is an essential nutrient that is found in a variety of foods, including meats, whole grains, and fruits and vegetables. This test is commonly ordered when a person has symptoms that may be caused by a deficiency of vitamin B6, such as anemia, nerve damage, and skin disorders. It can also be used to monitor the effectiveness of treatment for these conditions.
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