Monday - Friday, 0800 - 1700.
5 - 7 days.
0.5 mL (at least 1.0 mL preferred).
Serum is preferred (red top collection tube). Centrifuge and separate from cells within one hour of drawing. Freeze serum or plasma.
Interpretive Reference Range:
Normal < 142 ng/mL.
Diagnosis of Canavan disease.
Stable isotope dilution gas chromatography-mass spectrometry (GC/MS).