What does high BUN and INR mean in blood test?

High BUN and INR can be caused by numerous problems.

High levels of BUN and INR in the blood indicate a variety of health problems. If your blood BUN level is between 6 mg/dL to 20 mg/dL and the INR level is between 0.9 mg/dL to 1.2 ratio, then your body does not have any underlying health problems. But if BUN and INR levels exceed these levels, you should see a doctor immediately.

Normal BUN range : 6 - 20 mg/dL

Age-wise ideal BUN level in blood:

Age	Ideal BUN value
<5 years	6.082
5-10 years	6.166
10-15 years	6.251
15-20 years	6.337
20-25 years	6.424
25-30 years	6.512
30-35 years	6.601
35-40 years	6.692
40-45 years	6.784
45-50 years	6.877
50-55 years	6.971
55-60 years	7.067
60-70 years	7.164
70-80 years	7.262
80-90 years	7.362
90-100 years	7.463
>100 years	7.566

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

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Normal INR range : 0.9 - 1.2 ratio

Age-wise ideal INR level in blood:

Age	Ideal INR value
<5 years	0.912
5-10 years	0.925
10-15 years	0.938
15-20 years	0.951
20-25 years	0.964
25-30 years	0.977
30-35 years	0.99
35-40 years	1.004
40-45 years	1.018
45-50 years	1.032
50-55 years	1.046
55-60 years	1.06
60-70 years	1.075
70-80 years	1.09
80-90 years	1.105
90-100 years	1.12
>100 years	1.135

High BUN and INR levels in the blood can cause a number of health problems. Your GP may recommend follow-up tests to get an important picture of your overall health and well-being. If the results are greater than 20 mg/dL for BUN and more than 1.2 ratio for INR, you may also need some follow-up tests that will help detect the underlying disease early.

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How is a blood test performed in the lab?

Depending on the symptoms you are experiencing, your doctor may order a BUN and INR test. In most hospitals BUN and INR results can be obtained within three to six hours after blood is taken. The blood is usually drawn from a vein on the inside of the elbow or the back of the hand. Drink plenty of water before your appointment. If you experience any symptoms that you are concerned about are out of the ordinary, call your doctor immediately.