What causes high BUN and low Direct LDL cholesterol?

High BUN and low Direct LDL cholesterol can be caused by many reasons.

If your BUN is in between 6 mg/dL and 20 mg/dL and your Direct LDL cholesterol is in between 40 mg/dL and 100 mg/dL then you need not worry as these are the normal ranges for BUN and Direct LDL cholesterol 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	6.062
5-10 years	6.125
10-15 years	6.188
15-20 years	6.252
20-25 years	6.317
25-30 years	6.382
30-35 years	6.448
35-40 years	6.515
40-45 years	6.582
45-50 years	6.65
50-55 years	6.719
55-60 years	6.789
60-70 years	6.859
70-80 years	6.93
80-90 years	7.002
90-100 years	7.075
>100 years	7.148

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

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Normal range of Direct LDL cholesterol : 40 - 100 mg/dL

Ideal values of Direct LDL cholesterol depending on age :

Age	Ideal Direct LDL cholesterol value
<5 years	5.052
5-10 years	5.052
10-15 years	5.052
15-20 years	5.052
20-25 years	5.052
25-30 years	5.052
30-35 years	5.052
35-40 years	5.052
40-45 years	5.052
45-50 years	5.052
50-55 years	5.052
55-60 years	5.052
60-70 years	5.052
70-80 years	5.052
80-90 years	5.052
90-100 years	5.052
>100 years	5.052

High BUN and low Direct LDL cholesterol can be caused by a lot of reasons. If you take BUN and Direct LDL cholesterol blood tests and the results are higher than 20 mg/dL for BUN and lower than 40 mg/dL for Direct LDL cholesterol, 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 Direct LDL cholesterol Tests Are Done :

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