Test Entry - Detail

Oxalate (24hr Urine)

General

Clinical Use:

The determination of oxalate in urine is important for the diagnosis and treatment of both oxalate kidney stone disease and the rare condition of primary hyperoxaluria. Type 1 primary hyperoxaluria is due to reduced activity of alphaketoglutarate:glyoxylate carboligase, and is characterised by increased urinary glycolate. Type 2 hyperoxaluria is due to the absence of D-glyceric acid dehydrogenase, and is accompanied by increased urinary L-glycerate. Increases in oxalate excretion are also associated with pyridoxine deficiency, and with chronic ileal disease.

Availability:

Samples are batched and tested once a week.
This test can only be performed on patients >=7 years of age.
If a 24hr urine is received on a patient <7 years of age, please register as a spot urine sample (UOXCR).

Code:

24OX

Handling Instructions (to laboratory):

Send sample chilled.

Hyperlink:

Reference Interval:

Male:
7 years to <15 years:   140-420 mmol/day
15 years to <120 years: 80-490 mmol/day

Female:
7 years to <15 years:   140-420 mmol/day
15 years to <120 years: 40-340 mmol/day

Collection Requirements

Container:

UR24 Sulphamic Acid (UR24SULP),

Sample Type:

See container

Minimum Collection Volume:

10mL

Collection Instructions:

Processing Requirements

Alternate Containers:

Processing Instructions:

Refer to local manual for processing requirements.

Minimum Assay Volume:

10mL

Stability:

Transport Instructions (to testing laboratory):

Send sample chilled.

Testing Locations

Performed at:

Section	Department	Site	Contact Phone
Special Chemistry	Biochemistry	Fiona Stanley Hospital	6152 2830

Last Updated : 13-08-2025 13:19