UREA NITROGEN, BODY FLUIDS
Specimen Collection Requirements
Body fluid, one sterile container. Do not use tubes with anti-coagulant. Indicate source of body fluid on the collection container and test request form. If more than one tube is collected, each tube should be labeled with a number indicating the sequence in which it was collected.
If cellular material is present, centrifuge specimen and remove supernatant within four hours of collection. Keep refrigerated after collection.
Gastric fluids, fluids collected with anti-coagulant, fluids from sources outside the body, and hemolyzed specimens will not be accepted.
Ambient (18-26°C): 24 hours, Refrigerated (2-8°C): 7 days, Frozen (≤ -20°C): 1 month
Thursday, January 5, 2017 03:41:46 AM
Client Services: 503-413-1234