Specimen:
Collect
- Green Top (Li Heparin)
Also Acceptable:
- Green Top (Na Heparin)
Submit
- 0.5 mL (Min:0.3 mL) Plasma . Submit Frozen. Submit in a Standard Transport Tube.
Rejection Criteria
- Hemolyzed specimens
Stability
Ambient: Unacceptable; Refrigerated: 24 Hour(s); Frozen: 1 Month(s); Incubated: Unacceptable
Methodology
- Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Performed
Sun-Sat
Reported
3-6 Day(s)
CPT Codes
- 82131
- 84510
Interpretive Data
Please see report for interpretive data.
Components
- 95079 - PHENYLALANINE, PLASMA
- 95080 - TYROSINE, PLASMA
Last Updated: July 27, 2026 @ 9:13 am
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