The humble bun test, also known as the blood urea nitrogen (BUN) test, is often overlooked despite being a crucial indicator of our overall health. But what’s considered “normal” when it comes to BUN levels?
A Vital Test for Diagnosing Kidney Function
The BUN test is a simple and non-invasive procedure that measures the amount of urea in your blood. Urea is a waste product produced by our kidneys as they filter out toxins from our bloodstream. When kidney function is impaired, excess urea can build up in the blood, leading to elevated BUN levels.
What’s Considered Normal?
So, what do healthy BUN levels look like? Typically, a normal range for bun test falls between 7-20 milligrams per deciliter (mg/dL). For adults with no known kidney disease or diabetes, this is the expected range. But what does it mean if your results fall outside of this range?

The humble bun test, also known as the blood urea nitrogen (BUN) test, is often overlooked despite being a crucial indicator of our overall health. But what’s considered “normal” when it comes to BUN levels?
A Vital Test for Diagnosing Kidney Function
The BUN test is a simple and non-invasive procedure that measures the amount of urea in your blood. Urea is a waste product produced by our kidneys as they filter out toxins from our bloodstream. When kidney function is impaired, excess urea can build up in the blood, leading to elevated BUN levels.
What’s Considered Normal?
So, what do healthy BUN levels look like? Typically, a normal range for bun test falls between 7-20 milligrams per deciliter (mg/dL). For adults with no known kidney disease or diabetes, this is the expected range. But what does it mean if your results fall outside of this range?
What Does Abnormal BUN Level Mean?
If your BUN level falls below 7 mg/dL, it may indicate that your kidneys are producing too much urea, which can be a sign of liver disease or malnutrition. On the other hand, elevated levels above 20 mg/dL suggest impaired kidney function, possibly due to chronic kidney disease (CKD), diabetes, or hypertension.
For example, if you have uncontrolled high blood pressure or are experiencing symptoms like fatigue, nausea, and vomiting, your BUN level may be higher than normal. Conversely, if you’re experiencing symptoms of liver disease, such as jaundice or dark urine, your BUN level might be lower.
It’s essential to note that a single abnormal BUN test result doesn’t necessarily mean you have a serious kidney problem. However, it may indicate the need for further testing and evaluation to rule out underlying conditions.
What to Do with Your Results?
If your BUN level falls outside of the normal range, it’s crucial to consult with your healthcare provider to discuss the results and determine the next steps. They may recommend additional tests, such as a creatinine test or imaging studies, to assess kidney function and rule out any underlying conditions.
Remember, early detection and treatment can significantly improve outcomes for patients with kidney disease. By understanding what’s considered normal when it comes to BUN levels, you’ll be better equipped to take control of your health and work with your healthcare provider to develop a personalized plan.
For more information on the bun test and its implications, visit the National Kidney Foundation or the Mayo Clinic’s BUN test page.
Get Expert Advice on Bun Test Results
Not sure what your bun test results mean? Our medical experts are here to help.
Consult with a Medical ExpertIn our previous discussion, we dove into the importance of the humble bun test, also known as the blood urea nitrogen (BUN) test, in diagnosing kidney function and overall health. Today, we’re going to summarize the key points covered so far and provide final insights.
Recapping Our Discussion
We learned that the BUN test measures the amount of urea in your blood and is a simple, non-invasive procedure. We also explored how impaired kidney function can lead to elevated BUN levels and discussed what’s considered “normal” when it comes to BUN levels – typically between 7-20 milligrams per deciliter (mg/dL) for adults with no known kidney disease or diabetes.
What’s Next?
If your results fall outside of this normal range, it may indicate underlying health issues. For instance, elevated BUN levels could be a sign of kidney damage or impairment, while low levels might suggest inadequate protein intake or liver dysfunction. It’s essential to consult with your healthcare provider to determine the best course of action and rule out any potential complications.
A Compelling Conclusion
In conclusion, the BUN test is more than just a number on a lab report – it holds the key to understanding our kidney function and overall health. By staying informed about what’s considered “normal” and taking proactive steps to address any abnormal results, we can take control of our well-being and work towards maintaining optimal health.