A Schilling test is also known as a Vitamin B12 absorption test. It was formerly used to determine whether a person was absorbing vitamin B12 normally. If not, then the test could pinpoint the cause ...

A complete blood count (CBC) is a common test to diagnose anemia by measuring red blood cell count, hemoglobin, and hematocrit levels. Iron deficiency is a common cause of anemia, and doctors may ...

Vitamin B12 deficiency can result in a host of symptoms, ranging from fatigue and brain fog to irritability and pins and needles. Despite having a normal B12 test result, some individuals may still ...