What causes high BUN and low ESR?

High BUN and low ESR can be caused by many reasons.

If your BUN is in between 6 mg/dL and 20 mg/dL and your ESR is in between 0.1 mm/hr and 14 mm/hr then you need not worry as these are the normal ranges for BUN and ESR 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	6.061
5-10 years	6.123
10-15 years	6.185
15-20 years	6.248
20-25 years	6.311
25-30 years	6.375
30-35 years	6.44
35-40 years	6.505
40-45 years	6.571
45-50 years	6.638
50-55 years	6.705
55-60 years	6.773
60-70 years	6.842
70-80 years	6.912
80-90 years	6.982
90-100 years	7.053
>100 years	7.125

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

If you want your blood test report to be interpreted by BUN specialist, then 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

1,37,160

Total number of patients treated

BUN treatment - Click to read 10 GOLDEN ARTICLES on Kidney health

Normal range of ESR : 0.1 - 14 mm/hr

Ideal values of ESR depending on age :

Age	Ideal ESR value
<5 years	2.02
5-10 years	2.041
10-15 years	2.062
15-20 years	2.083
20-25 years	2.104
25-30 years	2.125
30-35 years	2.147
35-40 years	2.169
40-45 years	2.191
45-50 years	2.213
50-55 years	2.235
55-60 years	2.258
60-70 years	2.281
70-80 years	2.304
80-90 years	2.327
90-100 years	2.351
>100 years	2.375

High BUN and low ESR can be caused by a lot of reasons. If you take BUN and ESR blood tests and the results are higher than 20 mg/dL for BUN and lower than 0.1 mm/hr for ESR, 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.

This page has got the maximum number of views from the below mentioned cities (traffic in last 30 days):

Le Tartre

Koppa, India

Grandvaux, Saône-et-Loire

Gioia dei Marsi

Hebballi, Dharwada

Gudgeri

Germagnat

Joganville

Jalali, Uttar Pradesh

Keezhanthoor

Hyochang-dong

Ghanashyampur

Ispra

Korwa, Uttar Pradesh

Jamalpur, Phagwara

La Forêt-du-Parc

Kumbhraj

Haer, Punjab

Iskander Pora, Jammu and Kashmir

Kutbewal

Kafr Sabt

Honghe Hani and Yi Autonomous Prefecture

Kavadukudi

Hypervitaminosis D

Kiladhari

Kadlikoppa

L'Escarène

Kuzhavadaiyan

Jeemaralli

Kolia, Wallis and Futuna

Haridwar

La Rochette, Seine-et-Marne

Garessio

Kumaranellur

Kankipadu

Kagal

Hafling

Lachapelle-aux-Pots

Hopkinton, Rhode Island

Kabi Longstok

Le Vauroux

Gulou District, Nanjing

Kummuh

Kingdom of Israel (united monarchy)

La Croisille

Hangu District, Tianjin

Huilong Township, Mianning County

Kaimur district

Itaqui

Kashiwara, Osaka

How the BUN and ESR Tests Are Done :

If your doctor wants BUN and ESR tests on you, you may need to go through these tests. During the BUN and ESR 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 ESR 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