Urea Nitrogen, 24-Hr Urine w/out Creatinine
Fasting Required: No

Specimen: Urine

Results: 3-5 business days

Special Instructions: Record total volume on both the transport container and the test requisition

Description: About 80% of urinary nitrogen is in the form of urea which is the major end product of protein metabolism. Urea excreted in the urine is the primary method of nitrogen elimination. Conditions associated with increased urine urea nitrogen are hyperthyroidism, high protein diets and post-operative states. Decreased levels are associated with convalescence, liver disease, toxemia and advanced renal disease.

Alternate Names: BUN; Nitrogen; Urea; Nitrogen Balance

Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.