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HelpTest Code LAB2090 Urea Nitrogen, 24 Hr Urine
Additional Codes
UN U24 (24 hr urine)
Includes:
Urea Nitrogen U and Urea Nitrogen U 24 Hour
Notes:
For 24 hour samples, specimen label and request must state the date/time the urine collection started & ended.
Collection:
Specimen: Urine, 24 hr collection
Container: 24 hr Urine – Plain 24 hour urine jug with no preservative. Refrigerate container during collection.
Volume: 24 hr – Entire collection
Stability:
Refrigerated (preferred): 1 Week
Frozen: 2 Weeks
.
Turnaround Time (TAT):
STAT: 1 HOUR
Routine: 4 HOURS
Test Availability:
24 hours a day / 7 days a week
Performing Laboratory Section:
Chemistry / UMC MAIN LABORATORY
Reference Interval:
Urea Nitrogen U: No established reference range
Urea Nitrogen 24 Hour: 12.000 – 20.000 gm/24 hour (varies with high protein diet)