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Test Code HYOX Hyperoxaluria Panel, Random, Urine


Necessary 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.


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.

Special Instructions

Method Name

Gas Chromatography Mass Spectrometry (GC-MS)

Reporting Name

Hyperoxaluria Panel, U

Specimen Type

Urine

Specimen Minimum Volume

1.1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Urine Frozen (preferred) 90 days
  Refrigerated  14 days

Reject Due To

  All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Reference 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

Day(s) Performed

Wednesday

Report Available

3 to 9 days

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. It has not been cleared or approved by the US Food and Drug Administration.

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

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)