- AASS
Amino Acids, Quantitative, Plasma
Specimen:
Test Code
AASS
Specimen Name
Amino Acids, Quantitative, Plasma
Collect
1-Green Top
Submit
1 mL (Min: 0.5 mL) Na or Lithium Heparin Plasma
Special Handling
Separate plasma from cells ASAP or within 2 hours of collection. Avoid transferring buffy coat material. Transfer plasma to a Standard Transport Tube and freeze immediately.
Rejection Criteria
Hemolyzed specimens.
Stability
Preferred/Transport Frozen 30 days; Ambient Unacceptable; Refrigerated 24 hours
Methodology
Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Performed
Sunday - Saturday
Reported
3-7 days
CPT Codes
- 82139
Components
Includes: alanine, arginine, aspartic acid, citrulline, glutamine, glutamic acid, glycine, histidine, hydroxyproline, isoleucine, leucine, lysine, methionine, ornithine, phenylalanine, proline, serine, taurine, threonine, tyrosine, valine, homocystine, allo-isoleucine, cystine, alpha-amino butyric acid, alpha-aminoadipic acid, argininosuccinic acid, beta-amino isobutyric acid, beta-alanine, ethanolamine, gamma-amino butyric acid, sarcosine, tryptophan, anserine, asparagine, cystathionine, homocitrulline, hydroxylysine
Additional Information
Adults: Fasting specimen preferred. Infants and children: Draw specimen prior to feeding or 2-3 hours after a meal. Clinical information is needed for appropriate interpretation. Additional required information includes age, gender, diet (e.g., TPN therapy), drug therapy, and family history. Linked form must be filled out in full. https://ltd.aruplab.com/api/ltd/pdf/16
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Common Lab Definitions
- Serum
- Plasma
- STT