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Lab Manual for Moffitt-Long and Mount Zion

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Organic Acids, Qualitative

Item Value
Approval req'd? No
Available Stat? No
Test code OAX
Performed by Lucille-Packard Children's Hospital
Sendout? Yes
Method GC/MS
Container type Urine cup
Amount to Collect 20 mL urine
Sample type Random urine, without preservatives
Preferred volume 5 mL urine
Min. Volume 3 mL urine
Processing notes Store frozen at -20C. Specimen pickup by Stanford Courier Services Monday-Friday. Maintain specimen in frozen condition to Stanford Hospital Clinical Laboratories.
Normal range Negative
Synonyms Homogentisic Acid
Turn around times Test batched, twice weekly. Result available: 5 business days.
Additional information This qualitative screen identifies abnormalities in over 200 different organic acids, using Gas Chromatography/Mass Spectrometry. Inborn errors of metabolism detected by this test include methymalonic academia, propionic academia, isovaleric academia, Canavan disease and many others.
LOINC code 2676-5
Last Updated 5/10/2013 1:11:37 PM
Entry Number 695
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