What causes high D Dimer and low BUN?

High D Dimer and low BUN can be caused by many reasons.

If your D Dimer is in between 0.1 ug/mL and 0.51 ug/mL and your BUN is in between 6 mg/dL and 20 mg/dL then you need not worry as these are the normal ranges for D Dimer and BUN respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Some examples of conditions that can increase or decrease D Dimer levels include:

• Smoking
• Obesity
• Clotting disorder such as factor V Leiden mutation
• Antiphospholipid syndrome
• Prolonged immobility

Normal range of D Dimer : 0.1 - 0.51 ug/mL

Ideal values of D Dimer depending on age :

Age	Ideal D Dimer value
<5 years	0.114
5-10 years	0.118
10-15 years	0.122
15-20 years	0.126
20-25 years	0.13
25-30 years	0.134
30-35 years	0.139
35-40 years	0.144
40-45 years	0.149
45-50 years	0.154
50-55 years	0.159
55-60 years	0.164
60-70 years	0.17
70-80 years	0.176
80-90 years	0.182
90-100 years	0.188
>100 years	0.194

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

Normal range of BUN : 6 - 20 mg/dL

Ideal values of BUN depending on age :

Age	Ideal BUN value
<5 years	6.205
5-10 years	6.417
10-15 years	6.636
15-20 years	6.862
20-25 years	7.096
25-30 years	7.338
30-35 years	7.588
35-40 years	7.847
40-45 years	8.115
45-50 years	8.392
50-55 years	8.678
55-60 years	8.974
60-70 years	9.28
70-80 years	9.596
80-90 years	9.923
90-100 years	10.261
>100 years	10.611

High D Dimer and low BUN can be caused by a lot of reasons. If you take D Dimer and BUN blood tests and the results are higher than 0.51 ug/mL for D Dimer and lower than 6 mg/dL for BUN, 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 D Dimer and BUN Tests Are Done :

If your doctor wants D Dimer and BUN tests on you, you may need to go through these tests. During the D Dimer and BUN 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 D Dimer and BUN Test reports by your pathologist.

Medical References

• Cleveland Clinic – D-Dimer Test: What It Is, What It Is Used For, Risks & Results
• MedlinePlus – D-Dimer Test
• WebMD – D-Dimer Test: What It Is and How It Works
• NIH – D-Dimer Test