What causes high MCV and low FT3 thyroid?

High MCV and low FT3 thyroid can be caused by many reasons.

If your MCV is in between 83 fL and 101 fL and your FT3 thyroid is in between 2.3 pg/mL and 4.2 pg/mL then you need not worry as these are the normal ranges for MCV and FT3 thyroid 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 MCV : 83 - 101 fL

Ideal values of MCV depending on age :

Age	Ideal MCV value
<5 years	86.312
5-10 years	89.756
10-15 years	93.337
15-20 years	97.061
20-25 years	100.934
25-30 years	100.773
30-35 years	100.613
35-40 years	100.452
40-45 years	100.292
45-50 years	100.133
50-55 years	99.973
55-60 years	99.814
60-70 years	99.655
70-80 years	99.496
80-90 years	99.338
90-100 years	99.18
>100 years	99.022

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

If you want your blood test report to be interpreted by MCV specialist, then you can upload your report. Our MCV expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now

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Some examples of conditions that increase or decrease MCV levels include:

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

If you want your blood test report to be interpreted by MCV specialist, you can upload your report. Our MCV expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours. Upload blood test report now

Normal range of FT3 thyroid : 2.3 - 4.2 pg/mL

Ideal values of FT3 thyroid depending on age :

Age	Ideal FT3 thyroid value
<5 years	2.392
5-10 years	2.487
10-15 years	2.586
15-20 years	2.689
20-25 years	2.796
25-30 years	2.908
30-35 years	3.024
35-40 years	3.145
40-45 years	3.27
45-50 years	3.4
50-55 years	3.536
55-60 years	3.677
60-70 years	3.824
70-80 years	3.977
80-90 years	4.136
90-100 years	4.129
>100 years	4.123

High MCV and low FT3 thyroid can be caused by a lot of reasons. If you take MCV and FT3 thyroid blood tests and the results are higher than 101 fL for MCV and lower than 2.3 pg/mL for FT3 thyroid, 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 FT3 thyroid Tests Are Done :

If your doctor wants MCV and FT3 thyroid tests on you, you may need to go through these tests. During the MCV and FT3 thyroid 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 FT3 thyroid Test reports by your pathologist.