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 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.

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	6.108
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 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

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A video message on the treatment of your normal BUN level

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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 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