What causes high BUN and low Thrombin Time?

High BUN and low Thrombin Time can be caused by many reasons.

If your BUN is in between 6 mg/dL and 20 mg/dL and your Thrombin Time is in between 14 sec and 23 sec then you need not worry as these are the normal ranges for BUN and Thrombin Time respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Normal range of BUN : 6 - 20 mg/dL

Ideal values of BUN depending on age :

Age	Ideal BUN value
<5 years	6.065
5-10 years	6.13
10-15 years	6.196
15-20 years	6.263
20-25 years	6.33
25-30 years	6.398
30-35 years	6.467
35-40 years	6.537
40-45 years	6.607
45-50 years	6.678
50-55 years	6.75
55-60 years	6.823
60-70 years	6.896
70-80 years	6.97
80-90 years	7.045
90-100 years	7.121
>100 years	7.198

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

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Normal range of Thrombin Time : 14 - 23 sec

Ideal values of Thrombin Time depending on age :

Age	Ideal Thrombin Time value
<5 years	1.011
5-10 years	1.011
10-15 years	1.011
15-20 years	1.011
20-25 years	1.011
25-30 years	1.011
30-35 years	1.011
35-40 years	1.011
40-45 years	1.011
45-50 years	1.011
50-55 years	1.011
55-60 years	1.011
60-70 years	1.011
70-80 years	1.011
80-90 years	1.011
90-100 years	1.011
>100 years	1.011

High BUN and low Thrombin Time can be caused by a lot of reasons. If you take BUN and Thrombin Time blood tests and the results are higher than 20 mg/dL for BUN and lower than 14 sec for Thrombin Time, your physician may recommend more tests to figure out the problem. You might also get these tests if your physician thinks you have some other disease.

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How the BUN and Thrombin Time Tests Are Done :

If your doctor wants BUN and Thrombin Time tests on you, you may need to go through these tests. During the BUN and Thrombin Time blood tests, a pathologist will put a needle into your veins and take out a small quantity of blood. A pathologist is a physician in the medical field who thoroughly studies the causes and effects of disease. Within a few hours you will get your BUN and Thrombin Time Test reports by your pathologist.

Medical References

• Mayo Clinic – Blood urea nitrogen (BUN) test
• MedlinePlus – BUN (Blood Urea Nitrogen)
• Cleveland Clinic – Blood Urea Nitrogen (BUN): Testing, Levels & Indication