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26061 Oxalate, 24 Hour Urine (0020482)

Oxalate, 24 Hour Urine (0020482)
Test Code: OXALSO
Synonyms/Keywords

Hyperoxaluria, Oxalate

Test Components

Oxalate

Creatinine, Urine

Useful For
Evaluate individuals with calcium oxalate renal calculi
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
​No ​24 Hour Urine ​Urine Jug ​Transfer tub ​4.0 mL ​1.5 mL
Collection Processing Instructions

Patient Preparation:  Patient should avoid ingestion of vitamin C prior to collection.

Collect:  24-hour urine. Refrigerate during collection.

Thoroughly mix entire collection (24-hour) in one container. Do not exceed 4 mL in Tubes.

Preserved: Transfer 4 mL (1.5 mL minimum) aliquot to an ARUP Transport Tube with Sulfamic Acid.  Mix well. Freeze immediately.

Unpreserved: Transport a 4 mL  (1.5 mL minimum) unadjusted aliquot of urine to an ARUP Standard Transport Tube. Freeze immediately.

Record total volume and collection time interval on transport tube and test request form.

CRITICAL FROZEN:  Separate specimens must be submitted when multiple tests are ordered.

Vitamin C (ascorbic acid) quickly degrades to oxalate in non-acidified urine. Patients should discontinue use of vitamin C supplements at least 48 hours prior to the start of urine collection and abstain until collection is complete.

Preservation with Sulfamic Acid before transporting is highly recommended.

 

Specimen Stability Information
Specimen Type Temperature Time
​Urine ​Frozen ​1 month
Rejection Criteria

Specimens shipped ambient or refrigerated.

Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​ARUP Laboratories ​Monday through Friday ​1-4 days ​Quantitative Spectrophotometry
Reference Lab
Reference Range Information
Performing Location Reference Range
​​ARUP Laboratories
Creatinine, Urine - per 24h
Age
Male
Female
3-8 years
140-700 mg/d
140-700 mg/d
9-12 years
300-1300 mg/d
300-1300 mg/d
13-17 years
500-2300 mg/d
400-1600 mg/d
18-50 years
1000-2500 mg/d
700-1600 mg/d
51-80 years
800-2100 mg/d
500-1400 mg/d
81 years and older
600-2000 mg/d
400-1300 mg/d
Oxalate, Urine - per 24h
Effective May 15, 2017
0-12 years: 7-31 mg/d
Male 13 years and older: 16-49 mg/d
Female 13 years and older: 13-40 mg/d
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
​83945 ​1
Synonyms/Keywords

Hyperoxaluria, Oxalate

Test Components

Oxalate

Creatinine, Urine

Ordering Applications
Ordering Application Description
​Clinical Order Manager ​Oxalate, 24Hour Urine (0020482)
​Cerner ​Oxalate, 24Hour Urine (0020482)
​Centricity ​Oxalate, 24Hour Urine (0020482)
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
​No ​24 Hour Urine ​Urine Jug ​Transfer tub ​4.0 mL ​1.5 mL
Collection Processing

Patient Preparation:  Patient should avoid ingestion of vitamin C prior to collection.

Collect:  24-hour urine. Refrigerate during collection.

Thoroughly mix entire collection (24-hour) in one container. Do not exceed 4 mL in Tubes.

Preserved: Transfer 4 mL (1.5 mL minimum) aliquot to an ARUP Transport Tube with Sulfamic Acid.  Mix well. Freeze immediately.

Unpreserved: Transport a 4 mL  (1.5 mL minimum) unadjusted aliquot of urine to an ARUP Standard Transport Tube. Freeze immediately.

Record total volume and collection time interval on transport tube and test request form.

CRITICAL FROZEN:  Separate specimens must be submitted when multiple tests are ordered.

Vitamin C (ascorbic acid) quickly degrades to oxalate in non-acidified urine. Patients should discontinue use of vitamin C supplements at least 48 hours prior to the start of urine collection and abstain until collection is complete.

Preservation with Sulfamic Acid before transporting is highly recommended.

 

Specimen Stability Information
Specimen Type Temperature Time
​Urine ​Frozen ​1 month
Rejection Criteria

Specimens shipped ambient or refrigerated.

Useful For
Evaluate individuals with calcium oxalate renal calculi
Test Components

Oxalate

Creatinine, Urine

Reference Range Information
Performing Location Reference Range
​​ARUP Laboratories
Creatinine, Urine - per 24h
Age
Male
Female
3-8 years
140-700 mg/d
140-700 mg/d
9-12 years
300-1300 mg/d
300-1300 mg/d
13-17 years
500-2300 mg/d
400-1600 mg/d
18-50 years
1000-2500 mg/d
700-1600 mg/d
51-80 years
800-2100 mg/d
500-1400 mg/d
81 years and older
600-2000 mg/d
400-1300 mg/d
Oxalate, Urine - per 24h
Effective May 15, 2017
0-12 years: 7-31 mg/d
Male 13 years and older: 16-49 mg/d
Female 13 years and older: 13-40 mg/d
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​ARUP Laboratories ​Monday through Friday ​1-4 days ​Quantitative Spectrophotometry
Reference Lab
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
​83945 ​1
For most current information refer to the Marshfield Laboratory online reference manual.