291

Test CODE NAME

291

Amino Acids Quantitative by LC-MS/MS, Urine

Methodology: Quantitative Liquid Chromatography/Tandem Mass Spectrometry
Performed: Mon-Fri
Reported: 5-8 days
Specimen Required: Patient Preparation: First morning urine preferred. 
Collect: Random urine - 4 ml urine.
Avoid dilute urine when possible. 
Specimen Preparation: Mix urine well. Transfer  urine to s Standard Transport Tubes and freeze immediately. 
Storage/Transport Temperature: CRITICAL FROZEN. 
Separate specimens must be submitted when multiple tests are ordered. 
Remarks: Clinical information is needed for appropriate interpretation. 
Additional required information includes age, gender, diet (eg, TPN therapy), drug therapy, and family history. 
Biochemical Genetics Patient History Form is available 
Stability: Ambient: Unacceptable; Refrigerated: 24 hours; Frozen: 1 month
NOTE: * This test is approved for all states. *
Performing Lab 
ARUP Laboratory
CPT Code(s): 82139
PDF Document: 291.pdf