What causes high MCV and low Bilirubin direct?

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

If your MCV is in between 83 fL and 101 fL and your Bilirubin direct is in between 0.1 mg/dL and 0.2 mg/dL then you need not worry as these are the normal ranges for MCV and Bilirubin direct 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 MCV levels include:

• Aplastic anemia
• Cold agglutinin disease
• Chronic hypoxia
• Low vitamin B12 level
• Myelodysplastic syndrome

MCV treatment - Click to read 10 GOLDEN ARTICLES on Anemia

Normal range of MCV : 83 - 101 fL

Ideal values of MCV depending on age :

Age	Ideal MCV value
<5 years	86.071
5-10 years	89.256
10-15 years	92.558
15-20 years	95.983
20-25 years	99.534
25-30 years	99.398
30-35 years	99.262
35-40 years	99.126
40-45 years	98.991
45-50 years	98.856
50-55 years	98.721
55-60 years	98.586
60-70 years	98.451
70-80 years	98.317
80-90 years	98.183
90-100 years	98.049
>100 years	97.915

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

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	0.11407
5-10 years	0.11829
10-15 years	0.12267
15-20 years	0.12721
20-25 years	0.13192
25-30 years	0.1368
30-35 years	0.14186
35-40 years	0.14711
40-45 years	0.15255
45-50 years	0.15819
50-55 years	0.16404
55-60 years	0.17011
60-70 years	0.1764
70-80 years	0.18293
80-90 years	0.1897
90-100 years	0.19672
>100 years	0.19645

High MCV and low Bilirubin direct can be caused by a lot of reasons. If you take MCV and Bilirubin direct blood tests and the results are higher than 101 fL for MCV and lower than 0.1 mg/dL for Bilirubin direct, 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 MCV and Bilirubin direct Tests Are Done :

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

Medical References

• MedlinePlus – MCV (Mean Corpuscular Volume)
• Cleveland Clinic – Mean Corpuscular Volume (MCV) Blood Test
• WebMD – Mean Corpuscular Volume (MCV) Blood Test