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HelpAcylglycines, Quantitative, Random, Urine
Additional Codes
LAB3306
Additional Testing Requirements
Diagnostic specificity of inborn errors of metabolism via urine acylglycine testing is available only for selected inborn errors of metabolism; it is recommended that urine organic acids (OAU / Organic Acids Screen, Random, Urine) be ordered and assessed simultaneously due to the limited number of metabolites included in this urine acylglycine test.
Necessary Information
1. Patient's age and sex are required.
2. Include family history, clinical condition (asymptomatic or acute episode), diet, and drug therapy information
Specimen Required
Supplies: Urine Tubes, 10 mL (T068)
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.
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.
Special Instructions
Specimen Type
UrineSpecimen Minimum Volume
4 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Frozen (preferred) | 416 days | |
| Refrigerated | 9 days |
Reference Values
n-Acetylglycine:≤3.50 mg/g Creatinine
n-Propionylglycine:≤2.25 mg/g Creatinine
Isobutyrylglycine:≤3.00 mg/g Creatinine
Ethylmalonic acid:≤25.00 mg/g Creatinine
n-Butyrylglycine:≤2.50 mg/g Creatinine
2-Methylsuccinic acid:≤9.00 mg/g Creatinine
2-Methylbutyrylglycine:≤2.00 mg/g Creatinine
Isovalerylglycine:≤8.00 mg/g Creatinine
Glutaric acid:≤8.00 mg/g Creatinine
3-Methylcrotonylglycine:≤2.25 mg/g Creatinine
n-Tiglylglycine:≤9.00 mg/g Creatinine
3-Methylglutaconic acid:≤25.00 mg/g Creatinine
n-Hexanoylglycine:≤2.00 mg/g Creatinine
n-Octanoylglycine:≤2.00 mg/g Creatinine
3-Phenylpropionylglycine:≤2.00 mg/g Creatinine
trans-Cinnamoylglycine:≤5.50 mg/g Creatinine
Suberylglycine:≤5.00 mg/g Creatinine
Dodecanedioic acid:≤0.50 mg/g Creatinine
Tetradecanedioic acid:≤0.50 mg/g Creatinine
Hexadecanedioic acid:≤0.50 mg/g Creatinine
Specimen Retention Time
3 monthsPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82542
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| AGU20 | Acylglycines, QN, U | 50334-2 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 608931 | Interpretation | 53718-3 |
| 608910 | n-Acetylglycine | 99059-8 |
| 608911 | n-Propionylglycine | 13800-8 |
| 608912 | Isobutyrylglycine | 38360-4 |
| 608913 | Ethylmalonic acid | 13741-4 |
| 608914 | n-Butyrylglycine | 27892-9 |
| 608915 | 2-Methylsuccinic acid | 13777-8 |
| 608916 | 2-Methylbutyrylglycine | 27097-5 |
| 608917 | Isovalerylglycine | 13766-1 |
| 608918 | Glutaric acid | 13748-9 |
| 608919 | 3-Methylcrotonylglycine | 13691-1 |
| 608920 | n-Tiglylglycine | 13816-4 |
| 608921 | 3-Methylglutaconic acid | 13692-9 |
| 608922 | n-Hexanoylglycine | 13753-9 |
| 608923 | n-Octanoylglycine | 38367-9 |
| 608924 | 3-Phenylpropionylglycine | 13793-5 |
| 608925 | trans-Cinnamoylglycine | 38417-2 |
| 608926 | Suberylglycine | 13811-5 |
| 608927 | Dodecanedioic acid | 13732-3 |
| 608928 | Tetradecanedioic acid | 50333-4 |
| 608929 | Hexadecanedioic acid | 50332-6 |
| 608930 | Reviewed By | 18771-6 |
Day(s) Performed
Monday, Thursday