- AAPD
Amino Acids, Quantitative, Random, Urine
Specimen:
Test Code
AAPD
Specimen Name
Amino Acids, Quantitative, Random, Urine
Collect
Sterile Urine Container
Submit
10 mLs (Min: 3 mLs) random urine
Special Handling
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered. First morning urine preferred.
Rejection Criteria
—
Stability
Preferred/Transport Frozen 70 days; Ambient Unacceptable; Refrigerated 14 days
Methodology
Liquid Chromatography-Tandem Mass Spectrometry
Performed
Monday - Friday
Reported
3-7 days
CPT Codes
- 82139
Components
Includes: taurine, threonine, serine, asparagine, hydroxyproline, glutamic acid, glutamine, aspartic acid, ethanolamine, sarcosine, proline, glycine, alanine, citrulline, alpha-aminoadipic acid, alpha-amino-n-butyric acid, valine, cystine, cystathionine, methionine, isoleucine, leucine, tyrosine, phenylalanine, beta-alanine, beta-aminoisobutyric acid, ornithine, lysine, 1-methylhistidine, histidine, 3-methylhistidine, argininosuccinic acid, allo-isoleucine, homocitrulline, gamma-amino-n-butyric acid, hydroxylysine, tryptophan, and arginine
Additional Information
1. Patient's age is required. 2. Include family history, clinical condition (asymptomatic or acute episode), diet, and drug therapy information. 3. If prolidase deficiency is a concern, indicate on the amino acid order "Pretreat with acid hydrolysis prior to analysis". The acid hydrolysis will break up in vitro proline and hydroxyproline containing dipeptides, which are cleaved in vivo by prolidase. https://www.mayocliniclabs.com/-/media/it-mmfiles/Special-Instructions/C/F/1/iem-request-form
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Common Lab Definitions
- Serum
- Plasma
- STT