Urine phenylpropionic acid test

Due to the deficiency or deficiency of phenylalanine hydroxylase in patients, the phenylalanine in metabolism cannot be converted into tyrosine, and phenylalanine is produced by transaminase to produce phenylpyruvate from urine. A large amount of phenylpyruvate accumulates in the body, which can damage the patient's nervous system and affect the pigment metabolism in the body. Basic Information Specialist classification: growth and development check classification: urine / kidney function test Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Normal value: no Above normal: negative: normal. Positive: Found in phenylketonuria. Tips: Should be checked within 30 to 60 days of birth. Need to take fresh urine, do not take phenolic drugs before the experiment. Normal value negative. Clinical significance Positive in phenylketonuria. Positive results may be diseases: pediatric propionateemia, phenylketonuria precautions Should be checked within 30 to 60 days of birth. Need to take fresh urine, do not take phenolic drugs before the experiment. Inspection process (1) 4 ml of urine plus 1 ml of precipitant, mix, stand for a while, remove the precipitate by filter paper or centrifugation to obtain clear urine. (2) Clarify 2 to 3 drops of urinary concentrated hydrochloric acid, 2 to 3 drops of ferric chloride solution, add 1 drop each, mix well, and observe the result immediately. Not suitable for the crowd Generally no taboos. Adverse reactions and risks Nothing.