Fasting before a blood test means that the patient is asked not to eat or drink anything other than water before the blood test. However, not all blood tests require fasting before the test, usually if it does, it is only for a short period of time.

Serum iron test is to check the iron level in your body. So what is serum iron test or serum iron quantification? The following article will help you better understand serum iron and ferritin blood test, as well as know when to quantify serum iron.