Test Directory
3231 BUN (Urea Nitrogen), Blood
Specimen Type
Specimen Stability
Reference Range
Serum-SST
5 Days 2-8° C
7-25 mg/dL
Specimen Requirements
Preferred amount: 1.0 mL Serum
Minimum amount: 0.5 mL Serum
Minimum amount: 0.5 mL Serum
Method
Enzymatic
Schedule
Mon-Sat
Turn-Around Time
24 hrs; Also offered STAT at an additional charge
Instructions/Notes
Centrifuge required?: Yes
Clinical Utility
To evaluate kidney function or monitor the effectiveness of dialysis and other treatments related to kidney disease or damage
CPT Codes
84520
