UREA NITROGEN, SERUM/PLASMA

Synonyms: BUN
Computer Code: BUN
Specimen Collection: 2 mL blood(light green top (Li Heparin) preferred. Red/gold acceptable). Pediatrics: 0.5 mL blood (light green top (Li Heparin) preferred. Red/gold acceptable).
Minimum Volume: 0.5 mL
Handling Instructions for Offsite Areas: Allow to clot, centrifuge for 20 minutes, refrigerate. Serum must be removed from red top tube.
Reference Values: 7-22 MG/DL
Lab Code: CC
Requisition: C/H
Test Frequency: Daily
Routine TAT: 2 hrs
Stat TAT: 45 min
CPT Code(s): 84520
LCD or NCD:
Methodology Used:
See Addendum XVII