A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Amino Acid Analysis, Limited, Plasma
Test Code1776
CPT Codes
82139
Includes
Isoleucine, Leucine, Phenylalanine, Tyrosine, Tryptophan, Valine
Preferred Specimen
2 mL plasma collected in sodium or lithium heparin (green-top) or EDTA (lavender-top) tube
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.
Minimum Volume
0.25 mL
Instructions
Plasma should be separated from cells as soon as possible after collection. Freeze plasma below -20° C.
Transport Temperature
Frozen
Specimen Stability
Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
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. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Set up: Mon-Fri; Report available: 5-7 days
Reference Range
See Laboratory Report
Clinical Significance
Amino Acid analysis is necessary for the diagnosis of a
variety of inborn errors of metabolosm. 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.
variety of inborn errors of metabolosm. 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.
Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
33608 Ortega Highway |
San Juan Capistrano, CA 92675-2042 |