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Urea Nitrogen, Fluid
0020183
Ordering Recommendation
Mnemonic
FL UN
Methodology
Spectrophotometry
Performed
Sun-Sat
Reported
Within 24 hours
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Peritoneal fluid. 
Specimen Preparation
Centrifuge and separate to remove cellular material. Transport 1 mL body fluid. (Min: 0.2 mL) 
Storage/Transport Temperature
Refrigerated. 
Unacceptable Conditions
Specimen types other than those listed. 
Remarks
Indicate source on test request form. 
Stability
Ambient: 24 hours; Refrigerated: 5 days; Frozen: 1 year 
Reference Interval
Not established
Interpretive Data
Reference ranges for this assay have not been established for body fluid. Results should be interpreted in comparison to the concentration in blood and in conjunction with clinical context.

Compliance Statement B: This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

Components
Component Test Code*Component Chart NameLOINC
0020183Urea Nitrogen, Body Fluid3093-2
0097114SR Source31208-2
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Blood Urea Nitrogen, Body Fluids
  • BUN, Body Fluids
  • Nitrogen, Body Fluids
  • Urea
  • Urea Nitrogen