Home
HelpTest Code UUN Urea Nitrogen, 24 Hour, Urine
Methodology
Conductivity
Specimen Requirements
Submit an entire 24-hour urine collection in a urine container.
No preservative. Refrigerate specimen during collection, and send
specimen refrigerated.
Note: 1. Starting and ending times
of collection are required on request form for
processing.
2. Follow instructions in “Urine Collection—Huntsville
Hospital Health System Laboratory” in “Special
Instructions.”
Specimen Stability Information
|
Specimen Type |
Temperature |
Time |
|
Urine, 24 hr collection |
RT |
2 days |
| Refrigerated | 7 days |
Reference Values
12-20 g/24 hours
Reject Due To
|
Hemolysis |
NA |
|
Lipemia |
NA |
|
Icterus |
NA |
Day(s) Test Set Up
Monday through Sunday
CPT Coding
81050 - urine timed measurement
84540 - urea nitrogen
Secondary ID
HHA1436
Performing Laboratory
Huntsville Hospital Laboratory
Special Instructions
LOINC Coding
| Test Name | LOINC Code |
|---|---|
|
Urea Nitrogen, 24 Hour, Urine |
3096-5 |
| Total Volume | 3167-4 |
| Urine Urea Nitrogen, Random | 3095-7 |