CPT Code:

82544

Availability:

Monday - Friday, 0800 - 1700.

Turnaround Time:

5 - 7 days.

Minimum Volume:

0.5 mL (at least 1.0 mL preferred).

Specimen Handling:

Serum is preferred (red top collection tube).  Centrifuge and separate from cells within 1 hour of drawing.  Freeze serum or plasma.

Interpretive Reference Range:

Normal  < 250 ng/mL.

Use:

Diagnosis and treatment of glutaric acidemia types 1 and 2.

Limitations:

May be elevated by medium chain triglycerides in diet.

Methodology:

Stable isotope dilution gas chromatography-mass spectrometry (GC/MS).