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22942 Urea Nitrogen, Urine 24 Hour

Urea Nitrogen, Urine 24 Hour
Test Code: URE-24H
Synonyms/Keywords
Urine Nitrogen, 24 Hour​
Test Components
Urine Urea Nitrogen and Creatinine​
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​ Urine​
24H Urine Jug
Urine Container​
 ​ 10 mL aliquot​ 1 mL aliquot​ ​
Collection Processing Instructions
Aliquots are taken from a well-mixed 24 hour collection without preservative. 
Indicate the collection time and total volume.
 
Specimen Stability Information
Specimen Type Temperature Time
Urine​ - No Preservative ​ Ambient 2 hours
​Refrigerate ​4 days
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Sunday​6-8 hours​ Urease GLDH & Modified Jaffe Assays/ Beckman AU
Reference Range Information
Performing Location Reference Range
All Performing Sites 12-20 g/24 hr​
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
84540   ​ ​ ​ ​ ​
Synonyms/Keywords
Urine Nitrogen, 24 Hour​
Test Components
Urine Urea Nitrogen and Creatinine​
Ordering Applications
Ordering Application Description
​Centricity

​a. Urea Nitrogen-24hr

b. BUN 24hr Urine

​Cerner ​Urea Nitrogen 24 Hour Urine
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​ Urine​
24H Urine Jug
Urine Container​
 ​ 10 mL aliquot​ 1 mL aliquot​ ​
Collection Processing
Aliquots are taken from a well-mixed 24 hour collection without preservative. 
Indicate the collection time and total volume.
 
Specimen Stability Information
Specimen Type Temperature Time
Urine​ - No Preservative ​ Ambient 2 hours
​Refrigerate ​4 days
Test Components
Urine Urea Nitrogen and Creatinine​
Reference Range Information
Performing Location Reference Range
All Performing Sites 12-20 g/24 hr​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Sunday​6-8 hours​ Urease GLDH & Modified Jaffe Assays/ Beckman AU
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
84540   ​ ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.