Monday - Friday, 0800 - 1700.
Random urine, frozen without preservative.
Interpretive Reference Range:
Subjective interpretation of organic acid screen; n/a to isomer type.
To determine isomeric form of increased 2-hydroxyglutaric acid.
Gas chromatography/mass spectrometry is used in a two-stage test:
- An organic acid screen is run to confirm an increase in 2-hydroxyglutaric acid.
- Chiral derivatives of the D- and L- isomers are separated by gas chromatography and identified by mass spectrometry.