Organic Acid Analysis

Organic acids are involved in many metabolic processes within the cell. With certain genetic disorders, there may be abnormal concentrations of organic acids that are present in blood or other body fluids. Organic acid analysis is usually carried out on urine since many of the abnormal compounds will not be observed in other tissues.

Turnaround Time

10 days

CPT Code(s)

83919

Cost

$231

Disturbances of organic acid metabolism may be suspected in infants or children with feeding difficulties, failure to thrive, growth delay, developmental delay, seizures, unusual body odor, hypotonia and/or hyperammonemia.

gas-liquid chromatography/mass spectroscopy (GC/MS)

At least 10 ml of random catch urine is requested for this test.

Samples must be frozen, preferably on dry ice. Samples must be sent frozen by overnight delivery services or courier. If the sample can be delivered the same day, it may be sent cold or at room temperature.