Is BUN 18 normal, high or low? What does Blood urea nitrogen level 18 mean?

Your BUN level of 18 is a Normal BUN level.

Normal BUN levels may indicate underlying health problems. The normal range is typically between 6 mg/dL and 20 mg/dL. If your levels are outside this range, it's important to speak with a healthcare provider. Consulting a doctor is recommended to determine the cause and appropriate next steps.

The normal BUN range for men is :6 - 20 mg/dL

Ideal values of BUN depending on age (male) :

Age	Ideal BUN value
<5 years	6.108
5-10 years	6.218
10-15 years	6.33
15-20 years	6.444
20-25 years	6.56
25-30 years	6.678
30-35 years	6.798
35-40 years	6.92
40-45 years	7.045
45-50 years	7.172
50-55 years	7.301
55-60 years	7.432
60-70 years	7.566
70-80 years	7.702
80-90 years	7.841
90-100 years	7.982
>100 years	8.126

*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 review it. You'll receive a detailed analysis and personalized treatment guidance via email within 12 hours. If you have additional blood test results besides BUN, please include those too—an accurate diagnosis often requires a full view of all abnormalities. Upload blood test report now

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A video message on the treatment of your normal 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

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 normal BUN levels over email.Upload blood test report now

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.

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	6.111
5-10 years	6.224
10-15 years	6.339
15-20 years	6.457
20-25 years	6.577
25-30 years	6.699
30-35 years	6.823
35-40 years	6.949
40-45 years	7.078
45-50 years	7.209
50-55 years	7.343
55-60 years	7.479
60-70 years	7.618
70-80 years	7.759
80-90 years	7.903
90-100 years	8.05
>100 years	8.199

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 orders a BUN test, it involves a straightforward blood draw to measure your BUN levels. A pathologist or lab technician will take a small sample of blood from a vein using a needle. Your BUN test results are usually available within a few hours.

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