Is BUN 40 high, normal or dangerous? What does Blood urea nitrogen level 40 mean?

BUN 40

Your BUN level of 40 is a High BUN level.

High BUN levels could indicate health issues. Typically, levels between 6 mg/dL to 20 mg/dL suggest no concerns. However, deviations from this range warrant prompt medical attention. Consulting a doctor for abnormal levels is advisable.

Important - Go to the end of this article and read how our patients treated their high BUN levels 

Contact a doctor

Normal range of BUN found among men :6 - 20 mg/dL

Ideal values of BUN depending on age (male) :
Age Ideal BUN value
<5 years 6.24
5-10 years 6.49
10-15 years 6.75
15-20 years 7.02
20-25 years 7.301
25-30 years 7.593
30-35 years 7.897
35-40 years 8.213
40-45 years 8.542
45-50 years 8.884
50-55 years 9.239
55-60 years 9.609
60-70 years 9.993
70-80 years 10.393
80-90 years 10.809
90-100 years 11.241
>100 years 11.691

*Ideal values ​are calculated based on our database of patient records

Get Advice via Email : Send us your blood test report, and our BUN experts will check it. Within 12 hours, expect a detailed analysis and precise treatment guidance delivered to your email. If you've had additional blood tests apart from BUN, please upload those too. A thorough diagnosis often relies on assessing all abnormalities for an accurate assessment. Upload blood test report now

1,37,160

Total number of patients treated

Important - Read more questions about high BUN levels after this video message 

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 - At the end of this article read how our patients treated their high BUN levels 

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
Contact a doctor

Receive world-class medical opinion about your high BUN levels over email.Upload blood test report now

Important - At the end of this article read how our patients treated their high BUN levels 

You can learn techniques to reduce high BUN levels by reading this 100 page eBook. This book is written by a patient himself and reviewed by the doctors of Medchunk. Read eBook here.

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Normal range of BUN found among women :6-20 mg/dL

Ideal values of BUN depending on age (female) :
Age Ideal BUN value
<5 years 6.247
5-10 years 6.504
10-15 years 6.772
15-20 years 7.051
20-25 years 7.342
25-30 years 7.644
30-35 years 7.959
35-40 years 8.287
40-45 years 8.628
45-50 years 8.983
50-55 years 9.353
55-60 years 9.738
60-70 years 10.139
70-80 years 10.557
80-90 years 10.992
90-100 years 11.445
>100 years 11.917
Chest pain

Can Low or High BUN cause Heart Problems?

Read on to know how abnormal BUN affects heart

Know more

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.

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How the BUN Test Is Done :

When your doctor recommends a BUN test, you'll likely undergo a simple blood draw specifically targeting the measurement of BUN. A pathologist, a specialist in studying diseases, will collect a small blood sample from your veins using a needle. Your BUN test results will typically be available within a few hours after this procedure.

BUN treatment - Click to read 10 GOLDEN ARTICLES on Kidney health

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Dr. Dwayne Michaels
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