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| Amino Acids, Quantitative | ||
| Order Code: AMINOP
Order Form: A-1a Miscellaneous Request or IPR Req |
Commercial "Mail-out" Laboratory 6240 RCP 356-3527 |
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Specimen |
Plasma | ||
Collection Medium: |
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Minimum: |
Preferred minimum: 4 mL heparinized plasma in a green-top (heparin) tube from a fasting patient (4 hours or more in infants). Absolute miniumum: 0.5 mL heparinized plasma | ||
Rejection Criteria: |
Thrombin-activated tube is not acceptable. | ||
Analytic Time: |
3 working days | ||
Reference Range: |
Age-dependent reference values are listed under "Inborn Errors of Amino Acid Metabolism" in Special Instructions, by report. | ||
Comments: |
Patient's age is required on request form for processing. Include family history, clinical condition (asymptomatic or acute episode), diet, and drug therapy information. | ||
Test Limitations: |
Biochemical test results depend in part on the clinical and dietary status at the time of specimen collection. A normal or non-diagnostic test result does not rule out the possibility of an underlying metabolic disorder, including that for which the test was requested. | ||
Methodology: |
Ion-Exchange Chromatography, Quantitative Includes quantitation of the following amino acids: taurine, threonine, serine, asparagine, glutamic acid, glutamine, proline, glycine, alanine, citrulline, a-aminoadipic acid, a-amino-N-butyric acid, valine, cystine, cystathionine, methionine, isoleucine, leucine, tyrosine, phenylalanine, b-alanine, b-aminoisobutyric acid, ornithine, lysine, 1-methylhistidine, histidine, 3-methylhistidine, carnosine, and arginine. | ||
CPT Code: |
82139 | ||
See Additional Information: Fasting Specimen Requirements |
Updated: 05/14/2007
Note: The information contained in this handbook is for use by personnel of University of Iowa Health Care. No other use is implied or intended.