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BLOOD UREA NITROGEN

Test Name  BLOOD UREA NITROGEN 
Mnemonic  BUN 
Lab Order Code   
CPT   84520 
Department   
Container  Serum Separator, Plasma Separator 
Alternative Container   
Handling   
Preferred Volume  1.0 ml serum or heparinized plasma 
Minimum Volume  0.5 ml 
Stability  7 days at room temperature or refrigerated; 1 year frozen 
Reject Criteria   
Component   
Methodology  Enzymatic 
Units  mg/dl 
Reference Range 2  SEE FOOTNOTE: 
Neonate Reference Range   
Required Information   
Performed  Daily 
Reported   Routine 4 hr, STAT 1hr 
Note   
LOINC    
Cross References   
Referred Lab   
Print #   
   
2  0-18yrs: 5/18 mg/dl 18-60yrs: 6-20 mg/dl >60yrs: 2-23 mg/dl