BUN (Blood Urea Nitrogen), Post ABCDEFGHIJKLMNOPQRSTUVWXYZ24 Hour Specimen Plasma Container Type Gold/White Top Tube Stability 7 days Report Available 1 day Methodology Urease/GLDH Reference Range 7 – 25 mg/dL Transport Temp Refrigerate 2° – 8° C CPT Code 84520 Previous | Next