What causes high Bilirubin direct and low D Dimer?

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

If your Bilirubin direct is in between 0.1 mg/dL and 0.2 mg/dL and your D Dimer is in between 0.1 ug/mL and 0.51 ug/mL then you need not worry as these are the normal ranges for Bilirubin direct and D Dimer 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 Bilirubin levels include:

• Gallstones present in the bile ducts
• Hepatitis A, hepatitis B, hepatitis C
• Scarring of the bile ducts
• Lack of oxygen (hypoxia)
• Liver disease

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Normal range of Bilirubin direct : 0.1 - 0.2 mg/dL

Ideal values of Bilirubin direct depending on age :

Age	Ideal Bilirubin direct value
<5 years	0.11123
5-10 years	0.11248
10-15 years	0.11374
15-20 years	0.11501
20-25 years	0.1163
25-30 years	0.1176
30-35 years	0.11892
35-40 years	0.12025
40-45 years	0.1216
45-50 years	0.12296
50-55 years	0.12434
55-60 years	0.12573
60-70 years	0.12714
70-80 years	0.12856
80-90 years	0.13
90-100 years	0.13146
>100 years	0.13293

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

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	0.111
5-10 years	0.112
10-15 years	0.113
15-20 years	0.114
20-25 years	0.115
25-30 years	0.116
30-35 years	0.117
35-40 years	0.118
40-45 years	0.119
45-50 years	0.12
50-55 years	0.121
55-60 years	0.122
60-70 years	0.123
70-80 years	0.124
80-90 years	0.125
90-100 years	0.126
>100 years	0.127

High Bilirubin direct and low D Dimer can be caused by a lot of reasons. If you take Bilirubin direct and D Dimer blood tests and the results are higher than 0.2 mg/dL for Bilirubin direct and lower than 0.1 ug/mL for D Dimer, 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 Bilirubin direct and D Dimer Tests Are Done :

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

Medical References

• Cleveland Clinic – Bilirubin Test: Understanding High vs. Low Levels & Causes
• Mayo Clinic – Bilirubin test
• MedlinePlus – Bilirubin Blood Test
• Medscape – Bilirubin: Reference Range, Interpretation, Collection and Panels
• NCBI – Evaluating Elevated Bilirubin Levels in Asymptomatic Adults