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HelpTest Code HYOX Hyperoxaluria Panel, Random, Urine
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Reporting Name
Hyperoxaluria Panel, USpecimen Type
UrineNecessary Information
1. Patient 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)
Container/Tube: Plastic, 10-mL urine tube
Specimen Volume: 10 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative.
3. Immediately freeze specimen.
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Frozen (preferred) | 90 days | |
| Refrigerated | 14 days |
Specimen Minimum Volume
1.1 mL
Special Instructions
Day(s) Performed
Wednesday
Specimen Retention Time
2 monthsReport Available
3 to 9 daysReference Values
GLYCOLATE
≤17 years: ≤75 mg/g creatinine
≥18 years: ≤50 mg/g creatinine
GLYCERATE
≤31 days: ≤75 mg/g creatinine
32 days - 4 years: ≤125 mg/g creatinine
5 - 10 years: ≤55 mg/g creatinine
≥11 years: ≤25 mg/g creatinine
OXALATE
≤6 months: ≤400 mg/g creatinine
7 months - 1 year: ≤300 mg/g creatinine
2 - 6 years: ≤150 mg/g creatinine
7 - 10 years: ≤100 mg/g creatinine
≥11 years: ≤75 mg/g creatinine
4-HYDROXY-2-OXOGLUTARATE (HOG)
≤10 mg/g creatinine
Useful For
Distinguishing between primary and secondary hyperoxaluria
Distinguishing between primary hyperoxaluria types 1, 2, and 3
Testing Algorithm
For more information see Hyperoxaluria Diagnostic Algorithm.
CPT Code Information
82542
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| HYOX | Hyperoxaluria Panel, U | 53710-0 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 50592 | Glycolate | 13751-3 |
| 50593 | Glycerate | 13749-7 |
| 50594 | Oxalate | 13483-3 |
| 38049 | 4-hydroxy-2-oxoglutarate | 13678-8 |
| 29982 | Interpretation | 59462-2 |
| 29984 | Reviewed By | 18771-6 |
Disease States
- Hyperoxaluria
Genetics Test Information
Primary hyperoxalurias, classified into types 1, 2, and 3, are genetic disorders of oxalate metabolism characterized by increased urinary excretion of oxalic acid and kidney stone formation.
Secondary hyperoxaluria is an acquired condition resulting from either increased intake of dietary oxalate or altered intestinal oxalate absorption.
Forms
1. Biochemical Genetics Patient Information (T602)
2. If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:
-Biochemical Genetics Test Request (T798)
-Renal Diagnostics Test Request (T830)