The Guthrie test, also known as the Guthrie bacterial inhibition assay, is a medical test performed on newborn infants to detect phenylketonuria, a disorder of amino acid metabolism. The test has been widely used throughout North America and Europe as one of the core newborn screening tests since the late 1960s. In recent years it is gradually being replaced in many areas by newer techniques such as tandem mass spectrometry that can detect a wider variety of congenital diseases. The Guthrie test is named after Robert Guthrie, an American bacteriologist and physician, who devised it in 1962.
Read more about Guthrie Test: Theory and Method, Interpretation of Results, Other Tests, History
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