Organic Acid, Comprehensive, Urine
| Abbrev Code: | OA | ||
| Order Code: | LAB3642 | Order Name: | Organic Acid, Comprehensive Urine |
| Synonyms: | Urine Lactate; Urine Metabolic Screen | ||
| Methodology: | Gas chromatography/Mass spectrometry | ||
| CPT Codes: | 83918 x1 | ||
| Test Includes: | Organic acid and urine creatinine | ||
| Turnaround Time: | Performed once/week; results are reported the next day. | ||
| Associated Links: | |||
Collection Instructions
| Specimen: | Urine, random collection |
| Optimal Volume: | Submit entire collection; analysis requires 5 mL minimum |
| Container: | Plastic leakproof container, sterile |
Processing and Shipping
| Specimen Processing: | Room temperature or refrigerated samples must arrive at Biochemical Genetics within 2 hours of collection (preferred). Alternately, store specimen in the freezer and ship on ice. Send in original container, 5 mL minimum. |
| Stability: | OUTREACH: Photocopy request form and send to Outreach office. Send original request form to BGEN lab. |
| Test Performed at or Referral Lab | UM Special Drug/Biochemical Genetics (Y) (UMMC East Bank) |
Interpretive
| Reference Range: |
Interpretive Report
An interpretation of report can be requested.
This is a semi-quantitative method and concentrations reported are approximate and have not been validated.
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| Use: | Detection and quantitation of organic acids excreted in the urine at abnormal concentrations for diagnosis of organic acidemias, such as propionic, methylmalonic, isovaleric and glutaric acidemia, maple syrup urine disease, tyrosinemia, multiple carboxylase deficiency and phenylketonuria. |
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