1-Methylhistidine; 3-Methylhistidine; Alanine; Alpha-Amino Adipic Acid; Alpha-Amino Butyric Acid; Arginine; Asparagine; Aspartic Acid; Beta Alanine; Beta-Amino Isobutyric Acid; Citrulline; Cystathionine; Cystine; Ethanolamine; Gamma-Amino Butyric Acid; Glutamic Acid; Glutamine; Glycine; Histidine; Homocystine; Hydroxylysine; Hydroxyproline; Isoleucine; Leucine; Lysine; Methionine; Ornithine; Phenylalanine; Proline; Sarcosine; Serine; Taurine; Threonine; Tryptophan; Tyrosine; Valine; Creatinine Random Urine
Amino Acid Analysis, LC/MS, Urine - Amino acid analysis is necessary for the diagnosis of a variety of inborn errors of metabolism. These include, but are not limited to, phenylketonuria, tyrosinemia, citrullinemia, non-ketotic hyperglycinemia, maple syrup urine disease, and homocystinuria. The assay is also key for the continued monitoring of treatment plans for these disorders and useful for assessing nutritional status of patients. Our methodology is highly accurate at very low levels as well as at elevated levels
2.0 mL Random Urine in a Sterile Container
7 days Refrigerated
30 days Frozen
Avoid Thaw/Freeze Cycles
No Preservatives
Provide patient age (required for correct reference range), sex, a brief clinical history, tentative diagnosis, and the therapy over the last three days (drugs, X-ray, infant formula, diet).
Quest Collection Instruction Sheet
5.0 mL Urine
Refer to Interpretive Results
Amino Acid Analysis, LC/MS, Urine - Amino acid analysis is necessary for the diagnosis of a variety of inborn errors of metabolism. These include, but are not limited to, phenylketonuria, tyrosinemia, citrullinemia, non-ketotic hyperglycinemia, maple syrup urine disease, and homocystinuria. The assay is also key for the continued monitoring of treatment plans for these disorders and useful for assessing nutritional status of patients. Our methodology is highly accurate at very low levels as well as at elevated levels
6 to 9 days
01425257
82139, 82570