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Test Code OXCR Oxalate : Creatinine Ratio, urine

Laboratory Code

LAB3041690

Specimen Requirements

Specimen Type: Random urine specimen without preservatives

Container/Tube: Sterile screw-capped sterile urine container without preservatives

Volume: 100.0 mL

Minimum Volume: 20.0 mL urine

Collection Instructions: Collect mid-stream urine in preservative-free urine container. Unacidified urine.

Specimen Stability

Specimen Type Urine
Ambient Send the sample to the laboratory immediately
Refrigerate 6 days (preferred)
Frozen 1 month

Panel Information

Panel includes the following tests:

Methodology

Spectrophotometry

Days and Times Performed

Friday, TAT 2 - 8 days

Specimen Condition

Haemolysis Not applicable
Icterus Not applicable
Lipaemia Not applicable
Others Not applicable

 

 

 

 

 

Reference Interval

Age  mmol/mmol
1 – < 6 mths  0.07 – 0.22
6 mths – < 1 yr 0.06 – 0.17
1 – < 2 yrs   0.05 – 0.13 
2 – < 3 yrs  0.04 – 0.10
3 – < 5 yrs  0.03 – 0.08
5 – < 7 yrs  0.03 – 0.07
7 – < 10 yrs  0.02 – 0.06
10 – < 14 yrs   0.02 – 0.06 
14 – 17 yrs   0.02 – 0.06 

 

 

 

 

 

 

 

 

 

 

 

Testing Laboratory

National University Hospital
Clinical Chemistry, 67724399

Useful For

Investigation of renal calculi

Service Code

31973

LOINC Code Information

Oxalate : Creatinine ratio 34350-9
Oxalate, urine 15086-2
Creatinine, urine 14683-7

Update

Last updated 24/02/2025