Blood Urea Nitrogen (BUN)
Posted: Tuesday, August 10th, 2021 | Updated: Monday, February 7th, 2022
Posted: Tuesday, August 10th, 2021 | Updated: Monday, February 7th, 2022
Canine Normal Values:
8-27 mg/dL
Feline Normal Values:
15-35 mg/dL
Significance:
Used in the assessment of the kidneys and the excretion of nitrogenous waste
Increases in Values:
Values that are increased by be caused by dehydration, renal disease, renal failure, and/or urinary tract obstructions. Note that assessments related to diagnosing kidney disease or failure are based on other findings such as the urine specific gravity, polydipsia, polyuria, and serum creatinine
Decreases in Values:
Decreased values are usually associated with low protein intake, decreased production (ex. Portosystemic Shunt), and/or diuresis
8-27 mg/dL
Feline Normal Values:
15-35 mg/dL
Significance:
Used in the assessment of the kidneys and the excretion of nitrogenous waste
Increases in Values:
Values that are increased by be caused by dehydration, renal disease, renal failure, and/or urinary tract obstructions. Note that assessments related to diagnosing kidney disease or failure are based on other findings such as the urine specific gravity, polydipsia, polyuria, and serum creatinine
Decreases in Values:
Decreased values are usually associated with low protein intake, decreased production (ex. Portosystemic Shunt), and/or diuresis
Sources:
Ford, Richard B., and Elisa M. Mazzaferro. Kirk and Bistner's Handbook of Veterinary Procedures and Emergency Treatment. 8th ed., Saunders Elsevier, 2006.
Ford, Richard B., and Elisa M. Mazzaferro. Kirk and Bistner's Handbook of Veterinary Procedures and Emergency Treatment. 8th ed., Saunders Elsevier, 2006.