Amino Acid Analysis, Plasma
Order Code:
AMINO
Test Summary
Amino Acid analysis is necessary for the diagnosis of a variety of inborn errors of metabolism. These include, but are not limited to, phenylketonuria, tyrosinemia, citrullinemia, non-ketotic hyperglycinemia, maple syrup urine disease, and homocystinuria. The assay is also key for the continued monitoring of treatment plans for these disorders and useful for assessing nutritional status of patients. Our methodology is highly accurate at very low levels as well as at elevated levels.
Aliases
- N/A
Specimen Collection
Special Instructions
N/A
Preferred Specimen
2 mL plasma collected in a sodium heparin (green-top) tube
Minimum Volume
0.25 mL
Instructions
Plasma should be separated from cells as soon as possible after collection. Freeze plasma below -20° C.
Patient age is required for correct reference range.
Patient age is required for correct reference range.
Patient Preparation
Collect plasma specimens after an overnight fast (or at least 4 hours after a meal). Non-fasting samples are acceptable for pediatric patients. Include date of collection and age of patient. (Age must be provided for the interpretation and age related reference ranges to print on the report.
Storage
N/A
Transport Temperature
Frozen
Specimen Stability
- Room temperature: Unacceptable
- Refrigerated: 7 days
- Frozen: 30 days
Limitations
N/A
Other Acceptable Specimens
Plasma collected in an: EDTA (lavender-top) tube, or lithium heparin (green-top) tube
Unacceptable Specimens
Gross hemolysis • Received room temperature
Order Code
AMINO
EPIC (Premier) Code
LAB3480
Includes
1-Methylhistidine, 3-Methylhistidine, Alanine, Alpha-Aminoadipic Acid, Alpha-Aminobutyric Acid, Arginine, Asparagine, Aspartic Acid, Beta-Alanine, Beta-Aminoisobutyric Acid, Citrulline, Cystathionine, Ethanolamine, Gamma-Aminobutyric Acid, Glutamic Acid, Glutamine, Glycine, Histidine, Homocystine, Hydroxyproline, Isoleucine, Leucine, Lysine, Methionine, Ornithine, Phenylalanine, Proline, Sarcosine, Serine, Taurine, Threonine, Tryptophan, Tyrosine, Valine
CPT Code
- 82139
Billing Code
- 670547
CPT Statement
Methodology
Chromatography/Mass Spectrometry
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano CA, 92675
33608 Ortega Highway
San Juan Capistrano CA, 92675
Department
Reference Testing
Reference Range
See Laboratory Report
Setup Schedule / Expected Turnaround Time
Monday - Saturday; Report available: 4 - 7 days
Specimen Collection
Special Instructions
N/A
Preferred Specimen
2 mL plasma collected in a sodium heparin (green-top) tube
Minimum Volume
0.25 mL
Instructions
Plasma should be separated from cells as soon as possible after collection. Freeze plasma below -20° C.
Patient age is required for correct reference range.
Patient age is required for correct reference range.
Patient Preparation
Collect plasma specimens after an overnight fast (or at least 4 hours after a meal). Non-fasting samples are acceptable for pediatric patients. Include date of collection and age of patient. (Age must be provided for the interpretation and age related reference ranges to print on the report.
Storage
N/A
Transport Temperature
Frozen
Specimen Stability
- Room temperature: Unacceptable
- Refrigerated: 7 days
- Frozen: 30 days
Limitations
N/A
Other Acceptable Specimens
Plasma collected in an: EDTA (lavender-top) tube, or lithium heparin (green-top) tube
Unacceptable Specimens
Gross hemolysis • Received room temperature
Result Information
Methodology
Chromatography/Mass Spectrometry
Testing Laboratory
N/A
Reference Range
See Laboratory Report
Setup Schedule / Expected Turnaround Time
Monday - Saturday; Report available: 4 - 7 days