Test directory: Urea Nitrogen, Urine

Ordering Code824
Test NameUrea Nitrogen, Urine
Alias24 Hour Urine Urea Nitrogen
Random Urine Urea Nitrogen
UUN
Preferred SpecimenUrine, 24 Hour
Preferred Container24 Hour Urine Container
Other Specimen/ContainerRandom Urine in Clean Container
Optimum Volume0.5 mL
Collection InstructionsKeep refrigerated during collection
Record entire 24 Hr Vol on container & requisition
No preservatives added.
Handling InstructionsSend a well-mixed, 50 mL aliquot of specimen.
Transport RequirementsOahu: Refrigerated
Airline: Refrigerated
Specimen StabilityAmbient: 2 Days
Refrigerated: 7 Days
Frozen: 4 Weeks
Frozen samples should be thawed only once.
Rejection CriteriaPreservatives used, Specimen older than stability limits,
Received ambient
Avail. StatNO
Analytic Time1 Day
MethodologyKinetic-UV

Reference range(s)

The reference ranges listed below are valid on this date of April 20, 2021.
ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
24-Hr Urine Urea NitrogenALL12-2012-20gm/24hr
VolumeALLmLSee report.
Total TimeALLminutesSee report.
Urine Urea NitrogenALLmg/dLSee report.