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HelpTest Code LAB140 BUN (Blood Urea Nitrogen)
Acceptable Collection Tube(s) or Specimen
Preferred: GRN PST
Acceptable: Gold SST or Red Top
Specimen Draw Volume
Volume: 1.0 mL
Minimum Volume: 0.5 mL
Processing Instructions
Draw in a Green PST, centrifuge, and refrigerate.
Stability
Stability: Room Temp 3-5 days, Refrigerated 7 days, Frozen indefinitely
Performed Test Frequency
Everyday
Methodology
Urease with GLDH
CPT(s)
84520
Performing Location
MercyOne Des Moines Laboratory, Chemistry