Home
HelpTest Code OAU Organic Acids Screen, Urine
Necessary Information
1. Patient's age is required.
2. Include family history, clinical condition (asymptomatic or acute episode), diet, and drug therapy information.
Specimen Required
Supplies: Urine Tubes, 10 mL (T068)
Specimen Volume: 10 mL
Pediatric: If insufficient collection volume, submit as much specimen as possible in a single container; the laboratory will determine if volume is sufficient for testing.
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative.
Forms
If not ordering electronically, complete, print, and send an Inborn Errors of Metabolism Test Request (T798) with the specimen.
Useful For
Diagnosis of inborn errors of metabolism
Testing Algorithm
The following algorithms are available in Special Instructions:
-Porphyria (Acute) Testing Algorithm
-Epilepsy: Unexplained Refractory and/or Familial Testing Algorithm
Special Instructions
- Porphyria (Acute) Testing Algorithm
- Newborn Screening Follow-up for Isolated C4 Acylcarnitine Elevations (also applies to any plasma or serum C4 acylcarnitine elevations)
- Newborn Screening Follow-up for Elevations of C8, C6, and C10 Acylcarnitine Elevations (also applies to any plasma or serum C8, C6, and C10 acylcarnitine elevations)
- Newborn Screening Follow-up for Isolated C5 Acylcarnitines Elevations (also applies to any plasma or serum C5 acylcarnitine elevations)
- Epilepsy: Unexplained Refractory and/or Familial Testing Algorithm
Method Name
Gas Chromatography-Mass Spectrometry (GC-MS)
Reporting Name
Organic Acids Scrn, USpecimen Type
UrineSpecimen Minimum Volume
4 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Frozen (preferred) | 416 days | |
| Refrigerated | 14 days |
Reject Due To
| All specimens will be evaluated at Mayo Clinic Laboratories for test suitability. |
Reference Values
An interpretive report will be provided.
Day(s) and Time(s) Performed
Monday through Saturday; 7 a.m.
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.CPT Code Information
83919
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| OAU | Organic Acids Scrn, U | 2676-5 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 80619 | Organic Acids Scrn, U | 2676-5 |