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Test Code Amino Acids, Quantitative, Blood Amino Acids, Quantitative, Blood

Performing Laboratory

St Louis Children's Hospital (SLCH)

Methodology

Tandem Mass Spectrometry

Specimen Requirements

Specimen Type: Blood

Container/Tube  
Preferred: Light green-top (lithium heparin) Vacutainer®

Acceptable: Green-top (Lithium Heparin) microtainer®, Gold/Red SST Vacutainer®, Plain, red-top Vacutainer®, or DARK green-top (sodium heparin) Vacutainer®.

Collection Volume:

3.0 mL (minimum 0.6 mL) for Vacutainer®.
If collected in microtainer®, container MUST be full.
Patient Preparation: None
Sample Rejection: Mislabeled or unlabeled specimens.
Special Instructions: Centrifuge and pour off into plastic vial, label with specimen type and freeze. Transport on dry ice. 

Reference Values

Age dependent.

See: Amino Acids Reference Ranges

CPT Coding

CPT Codes: 82139

Day(s) Test Set Up

Day(s) Test Set Up: Monday-Friday
Cut-off time: 0430
Turnaround Time: 5 days
Lab Testing Section: Metabolic Genetics

Specimen Transport Temperature

Analyte Stability:

Ambient: 1 hour
Refrigerated: NA
Frozen: Indefinitely