18 days
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Accredited Laboratory Partner
Contact Technical Support
Measures a dopamine metabolite used in diagnosing aromatic L-amino acid decarboxylase deficiency. Useful in pediatric metabolic evaluations.
Plasma
1 mL
Lavender-top (EDTA) tube, green-top (sodium heparin) tube
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
Strictly frozen, requires own sample container
| Temperature | Period |
|---|---|
| Frozen | Indefinitely |
18 days
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Accredited Laboratory Partner
Contact Technical Support
Measures a dopamine metabolite used in diagnosing aromatic L-amino acid decarboxylase deficiency. Useful in pediatric metabolic evaluations.
Plasma
1 mL
Lavender-top (EDTA) tube, green-top (sodium heparin) tube
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
Strictly frozen, requires own sample container
| Temperature | Period |
|---|---|
| Frozen | Indefinitely |