§ 862.1555. Phenylalanine test system.
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/us/cfr/t21/s§ 862.1555·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
(a)Identification. A phenylalanine test system is a device intended to measure free phenylalanine (an amino acid) in serum, plasma, and urine. Measurements of phenylalanine are used in the diagnosis and treatment of congenital phenylketonuria which, if untreated, may cause mental retardation.
(b)Classification. Class II.