Is BUN Creatinine ratio 28.6 high, normal or dangerous? What does BUN Creatinine ratio level 28.6 mean?

📅 Medical Review Date: November 16, 2025

Your BUN Creatinine ratio level of 28.6 is a High BUN Creatinine ratio level.

High BUN Creatinine ratio levels may indicate underlying health problems. The normal range is typically between 5 Ratio and 15 Ratio. 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 Creatinine ratio range for men is :5 - 15 Ratio

Ideal values of BUN Creatinine ratio depending on age (male) :

Age	Ideal BUN Creatinine ratio value
<5 years	5.143
5-10 years	5.29
10-15 years	5.441
15-20 years	5.597
20-25 years	5.757
25-30 years	5.922
30-35 years	6.091
35-40 years	6.265
40-45 years	6.444
45-50 years	6.628
50-55 years	6.818
55-60 years	7.013
60-70 years	7.214
70-80 years	7.42
80-90 years	7.632
90-100 years	7.85
>100 years	8.075

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

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Some examples of conditions that increase or decrease BUN Creatinine ratio levels include:

• Kidney failure
• Decreased blood flow to the kidneys
• Dehydration
• Conditions that can block the flow of urine
• Congestive heart failure

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

Normal range of BUN Creatinine ratio found among women :5-15 Ratio

Ideal values of BUN Creatinine ratio depending on age (female) :

Age	Ideal BUN Creatinine ratio value
<5 years	5.147
5-10 years	5.299
10-15 years	5.455
15-20 years	5.616
20-25 years	5.781
25-30 years	5.951
30-35 years	6.126
35-40 years	6.306
40-45 years	6.492
45-50 years	6.683
50-55 years	6.88
55-60 years	7.083
60-70 years	7.292
70-80 years	7.507
80-90 years	7.728
90-100 years	7.956
>100 years	8.19

If you take a BUN Creatinine ratio blood test and the results are not in the normal range (5-15 Ratio), 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 Creatinine ratio Test Is Done :

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

Medical References

• WebMD – Blood Urea Nitrogen (BUN) Test: High vs. Low Levels, Normal Range
• NIH – The meaning of the blood urea nitrogen/creatinine ratio in acute kidney injury