Amino Acid Analysis, Limited, Plasma

Message

Interfaced

Test Code

AAQP

Quest Code

1776

Includes

Isoleucine, Leucine, Phenylalanine, Tyrosine, Tryptophan, Valine

Preferred Specimen

2 mL plasma collected in a sodium or lithium heparin (green-top) tube 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.

Minimum Volume

0.25 mL

Instructions

Plasma should be separated from cells as soon as possible after collection. Freeze plasma below -20° C.

Transport Container

Transport tube

Transport Temperature

Frozen

Specimen Stability

Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 28 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 FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

Mon-Fri

Report Available

10-14 days

Reference Range

See Laboratory Report

Performing Laboratory

Quest Diagnostics Nichols Institute-San Juan Capistrano, CA

33608 Ortega Highway

San Juan Capistrano, CA 92675-2042

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.