Test directory: Amino Acid Analysis, LC/MS, Plasma

Ordering Code 5815
Test Name Amino Acid Analysis, LC/MS, Plasma
Alias AA
Preferred Specimen Plasma
Preferred Container Sodium Heparin (Green)
Other Specimen/Container Plasma in EDTA, K2 (Lavender), Plasma in Lithium Heparin (Green)
Optimum Volume 2 mL
Collection Instructions Collect plasma specimens after an overnight fast (or at least 4 hours after a meal). Non-fasting samples are acceptable for pediatric patients.
Handling Instructions Plasma should be separated from cells as soon as possible after collection. Freeze plasma below -20 degrees C.
Transport Requirements Oahu: Frozen
Airline: Frozen
Specimen Stability Ambient: Not Stable
Refrigerated: 7 Days
Frozen (-70 degrees): 30 Days
Rejection Criteria Ambient specimens, Grossly hemolyzed
Avail. Stat NO
Analytic Time Up to 1 Day
Methodology Chromatography/Mass Spectrometry
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Interpretation ALL See report.
Date of Birth ALL See report.
Aspartic Acid ALL See report.
Glutamic Acid ALL See report.
Hydroxyproline ALL See report.
Serine ALL See report.
Asparagine ALL See report.
Alpha-Aminoadipic Acid ALL See report.
Glycine ALL See report.
Glutamine ALL See report.
Sarcosine ALL See report.
Beta-Alanine ALL See report.
Taurine ALL See report.
Histidine ALL See report.
Citrulline ALL See report.
Arginine ALL See report.
Threonine ALL See report.
Alanine ALL See report.
1-Methylhistidine ALL See report.
Gamma-Aminobutyric Acid ALL See report.
3-Methylhistidine ALL See report.
Beta-Aminoisobutyric Acid ALL See report.
Proline ALL See report.
Ethanolamine ALL See report.
Alpha-Aminobutyric Acid ALL See report.
Tyrosine ALL See report.
Valine ALL See report.
Methionine ALL See report.
Cystathionine ALL See report.
Isoleucine ALL See report.
Leucine ALL See report.
Homocystine ALL See report.
Phenylalanine ALL See report.
Tryptophan ALL See report.
Ornithine ALL See report.
Lysine ALL See report.