UREA NITROGEN, URINE, TIMED
Urea Nitrogen (UN) in Urine - Urine Urea Nitrogen (UUN)
Urine Urea Nitrogen, Urine Urea Nitrogen/Day
Specimen Collection Requirements
Preferred: 24 hour urine without preservatives, refrigerate during collection. Also acceptable: Other timed urine collections.
Collect urine over 24 hours. Refrigerate during collection. Mix urine well before removing aliquot. Record collection time interval and total volume on the transport tube and test request form.
Ambient (18-26°C): 48 hours; Refrigerated (2-8°C): 7 days; Frozen (at or below -20°C): 1 month
Tuesday, July 24, 2018 12:22:43 PM
Client Services: 503-413-1234