Test Code C5DCU C5-DC Acylcarnitine, Quantitative, Random, Urine
Reporting Name
C5-DC Acylcarnitine, QN, UUseful For
Evaluation of patients with an abnormal newborn screen showing elevations of glutarylcarnitine
Diagnosis of glutaric aciduria type 1 deficiency
Method Name
Flow Injection Analysis-Tandem Mass Spectrometry (FIA-MS/MS)
Performing Laboratory

Specimen Type
UrineOrdering Guidance
For general screening for metabolic disorders, see OAU / Organic Acids Screen, Random, Urine; ACRN / Acylcarnitines, Quantitative, Plasma; and AAQP / Amino Acids, Quantitative, Plasma.
Necessary Information
Include patient's age, family history, clinical condition (asymptomatic or acute episode), diet, and drug therapy information.
Specimen Required
Patient Preparation: If clinically feasible, discontinue L-carnitine supplementation at least 72 hours before specimen collection.
Supplies: Urine Tubes, 10 mL (T068)
Collection Container/Tube: Clean, plastic urine collection container
Submission Container/Tube: Plastic, 10-mL urine tube
Specimen Volume: 5 mL
Collection Instructions:
1. Collect a random urine specimen.
2. Freeze specimen immediately.
Specimen Minimum Volume
1 mL
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Urine | Frozen (preferred) | 7 days | |
Refrigerated | 24 hours |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Reference Values
Day(s) Performed
Monday, Wednesday, Friday
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 US Food and Drug Administration.CPT Code Information
82017
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
C5DCU | C5-DC Acylcarnitine, QN, U | 54279-5 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
88831 | C5-DC Acylcarnitine, QN, U | 54279-5 |
28126 | C5-DC Interpretation | 59462-2 |
34470 | Reviewed By | 18771-6 |
Report Available
2 to 5 daysForms
If not ordering electronically, complete, print, and send a Biochemical Genetics Test Request (T798) with the specimen.