What Are the Causes of Elevation in Bun creatinine & Glucose?

Doctors may order blood tests to measure a patient’s BUN creatinine ratio and glucose and detect an elevation of these substances in the patient’s bloodstream. Results of these tests can indicate serious medical conditions such as kidney disease or diabetes.

BUN Creatinine Ratio

• According to West Virginia University Healthcare, the BUN creatinine ratio measures the ratio of blood urea nitrogen to creatinine in a patient’s blood. This ratio measures a patient’s kidney function.

Glucose Test

• Glucose blood tests measure the amount of blood sugar in a patient’s bloodstream and can indicate blood sugar disorders such as diabetes or hypoglycemia.

Diet

• A patient’s diet can cause elevated BUN creatinine and glucose, because high dietary intake of protein can increase BUN levels and eating large amounts of food can cause elevated glucose levels, according to the U.S. National Library of Medicine.

Kidney and Urinary

• A high BUN creatinine ratio may be caused by kidney failure or an obstruction in a patient’s urinary tract.

Diabetes

• An elevation in fasting glucose levels may indicate diabetes if the test result is confirmed by a second glucose test.