Dry Blood Test: Treatment, Effect & Risks

In 1963, the American physician and microbiologist Robert Guthrie introduced the dry blood test, the Guthrie test, with which he was able to diagnose the metabolic disorder phenylkenonuria (inability to break down the amino acid phenylalanine due to the lack of an important enzyme in the body) in newborns. Even today, this screening method is … Dry Blood Test: Treatment, Effect & Risks