Home
HelpTest Code OAU Organic Acids Screen, Random, Urine
Reporting Name
Organic Acids Scrn, UUseful For
Diagnosis of inborn errors of metabolism
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
UrineNecessary Information
1. Patient's age is required.
2. Biochemical Genetics Patient Information (T602) is recommended, but not required, to be filled out and sent with the specimen to aid in the interpretation of test results.
Specimen Required
Supplies: Urine Tubes, 10 mL (T068)
Collection Container/Tube: Clean, plastic urine collection container
Submission Container/Tube: Plastic, 10-mL urine tube
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.
Specimen Minimum Volume
4 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Frozen (preferred) | 416 days |
| Refrigerated | 14 days |
Special Instructions
Reference Values
An interpretive report will be provided.
Day(s) Performed
Monday through Saturday
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
83919
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| OAU | Organic Acids Scrn, U | 49287-6 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 80619 | Organic Acids Scrn, U | 49287-6 |
Cautions
The diagnostic specificity of organic acid analysis under acute and asymptomatic conditions may vary considerably.
Informative profiles may not always be detected in disorders where the excretion of diagnostic metabolites is a reflection of the residual activity of the defective enzyme, the dietary load of precursors, and the anabolic/catabolic status of a patient.
In some cases, methods of higher specificity and sensitivity, such as acylcarnitine and acylglycine analysis, can effectively overcome the limitations of standard organic acid analysis for the investigation of patients who are not acutely ill.
Report Available
3 to 5 daysReject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.NY State Approved
YesMethod Name
Gas Chromatography Mass Spectrometry (GC-MS)
Forms
1. Biochemical Genetics Patient Information (T602)
2. If not ordering electronically, complete, print, and send a Biochemical Genetics Test Request (T798) with the specimen.
Testing Algorithm
For information see Epilepsy: Unexplained Refractory and/or Familial Testing Algorithm