Item Value
Test name Tyrosine, plasma
Available Stat? No
Turn around times Set up at least 3x weekly. Turnaround time: 3-5 days.
Performed by Quest
Patient Preparation Collect specimen after an overnight fast (or at least 4 hours after a meal) if possible. Non-fasting samples are acceptable for pediatric patients
Normal range
0-30 days 33-160 µmol/L
31 days-23 months 24-125 µmol/L 2-17 years 31-108 µmol/L ≥ 18 years 38-96 µmol/L
Container type Dark Green top
Amount to Collect 1 mL blood
Collection Instructions Provide the patient's age and sex, a brief clinical history and tentative diagnosis, and a description of drug, infant formula or dietary therapy or X-rays in the previous three days.
Sample type Heparinized plasma

If you have additional questions regarding this test, please call: 415-353-1667