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Phenylalanine

Item Value
Approval req'd? No
Available Stat? No
Test code PALA
Performed by Quest
Sendout? Yes
Method IEC
Patient Preparation Fasting for 4 hours prior to sample collection is recommended.
Container type Dark Green top
Amount to Collect 4 mL blood
Sample type Heparinized plasma
Preferred volume 2 mL plasma
Min. Volume 0.5 mL plasma
Processing notes Freeze plasma at -20C. Order Quest # 37356
Units µmol/L
Normal range
≤ 30 days 30-79 µmol/L
31 days-23 months 31-92 µmol/L
2-18 years 38-86 µmol/L
> 18 years 40-74 µmol/L
Stability Room temperature unacceptable, refrigerated 1 week, frozen at -20C 1 month
Turn around times Set up 5x per week Turnaround time: 2-4 days
Additional information To convert result to mg/dL, multiply result in µmol/L x 0.0165
CPT coding 84030-90
LOINC code 14875-9
Last Updated 10/2/2010 11:52:25 AM
Entry Number 736
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