Is BUN 21 high, normal or dangerous? What does Blood urea nitrogen level 21 mean?
Your BUN level of 21 is a High BUN level.
High levels of BUN in the blood indicate a variety of health problems. If your blood BUN level is between 6 mg/dL and 20 mg/dL, you probably do not have an underlying health problem. But if BUN levels are not in this range, you should see a doctor immediately.
Important - Go to the end of this article and read how our patients treated their high BUN levels
Normal range of BUN found among men : 6 - 20 mg/dL
| Age | Ideal BUN value |
|---|---|
| <5 years | 6.126 |
| 5-10 years | 6.255 |
| 10-15 years | 6.386 |
| 15-20 years | 6.52 |
| 20-25 years | 6.657 |
| 25-30 years | 6.797 |
| 30-35 years | 6.94 |
| 35-40 years | 7.086 |
| 40-45 years | 7.235 |
| 45-50 years | 7.387 |
| 50-55 years | 7.542 |
| 55-60 years | 7.7 |
| 60-70 years | 7.862 |
| 70-80 years | 8.027 |
| 80-90 years | 8.196 |
| 90-100 years | 8.368 |
| >100 years | 8.544 |
*Ideal values are calculated based on our database of patient records
A video message on the treatment of your high BUN level
If you want your blood test report to be interpreted by BUN specialist, you can upload your report. Our BUN expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now
Important Article : How our patients treated their high bun?
Click here to know Symptoms of High BUN
Besides Lab test failures, there are many other reasons for inaccurate blood results. Know the common reasons for inaccurate blood test results
Can Low or High BUN cause Heart Attack? Click here to know
Normal range of BUN found among women : 6-20 mg/dL
| Age | Ideal BUN value |
|---|---|
| <5 years | 6.13 |
| 5-10 years | 6.263 |
| 10-15 years | 6.398 |
| 15-20 years | 6.536 |
| 20-25 years | 6.677 |
| 25-30 years | 6.821 |
| 30-35 years | 6.969 |
| 35-40 years | 7.12 |
| 40-45 years | 7.274 |
| 45-50 years | 7.431 |
| 50-55 years | 7.592 |
| 55-60 years | 7.756 |
| 60-70 years | 7.924 |
| 70-80 years | 8.095 |
| 80-90 years | 8.27 |
| 90-100 years | 8.449 |
| >100 years | 8.632 |
Click here to know Symptoms of High BUN
Can Low or High BUN cause Heart Attack? Click here to know
Click here to upload your blood test report
If you take a BUN blood test and the results are not in the normal range (6-20 mg/dL), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.
Some examples of conditions that increase or decrease BUN levels include:
- Kidney failure
- Decreased blood flow to the kidneys
- Congestive heart failure
- Dehydration
- Conditions that can block the flow of urine
Receive world-class medical opinion about your high BUN levels over email. Upload blood test report now
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How the BUN Test Is Done :
If your doctor wants BUN test on you, you may need a BUN blood test. During the BUN blood test, a pathologist will put a needle into your veins and take out a small quantity of blood. A pathologist is a physician in the medical field who thoroughly studies the causes and effects of disease. Within a few hours you will get your BUN Test report by your pathologist.
Click here to upload your blood test report
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