Prostate cancer is surprisingly prevalent in men with serum PSA levels that are considered by many clinicians to be in the normal range (i.e. ≤4.0 ng/ml). Levels <4.0 ng/ml can be predictive of ...

A serum iron test can reveal unusually low or high blood iron levels. Your doctor will most likely order this test after another lab test shows an abnormal result. Having too much iron — or not ...

Us Weekly has affiliate partnerships. We receive compensation when you click on a link and make a purchase. Learn more! Sifting through anti-aging beauty products is a job in itself, so when we ...

It has recently been proposed that the true upper normal limit of serum alanine aminotransferase (ALT) is much lower than that listed by the manufacturers of commercially available assays.