What causes high MCHC and low RDW SD?

High MCHC and low RDW SD can be caused by many reasons.

If your MCHC is in between 31.5 g/dL and 34.5 g/dL and your RDW SD is in between 39 fL and 46 fL then you need not worry as these are the normal ranges for MCHC and RDW SD 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 MCHC : 31.5 - 34.5 g/dL

Ideal values of MCHC depending on age :

Age	Ideal MCHC value
<5 years	32.351
5-10 years	33.224
10-15 years	34.121
15-20 years	34.096
20-25 years	34.072
25-30 years	34.047
30-35 years	34.022
35-40 years	33.998
40-45 years	33.973
45-50 years	33.948
50-55 years	33.924
55-60 years	33.899
60-70 years	33.874
70-80 years	33.85
80-90 years	33.825
90-100 years	33.8
>100 years	33.776

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

If you want your blood test report to be interpreted by MCHC specialist, then you can upload your report. Our MCHC 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 MCHC levels include:

• Iron deficiency anemia or Aplastic anemia
• Inflammatory disorders
• Bone marrow defects
• Hereditary spherocytosis
• Liver disease

If you want your blood test report to be interpreted by MCHC specialist, you can upload your report. Our MCHC 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 RDW SD : 39 - 46 fL

Ideal values of RDW SD depending on age :

Age	Ideal RDW SD value
<5 years	40.053
5-10 years	41.134
10-15 years	42.245
15-20 years	43.386
20-25 years	44.557
25-30 years	45.76
30-35 years	45.727
35-40 years	45.694
40-45 years	45.661
45-50 years	45.628
50-55 years	45.595
55-60 years	45.562
60-70 years	45.529
70-80 years	45.496
80-90 years	45.462
90-100 years	45.428
>100 years	45.395

High MCHC and low RDW SD can be caused by a lot of reasons. If you take MCHC and RDW SD blood tests and the results are higher than 34.5 g/dL for MCHC and lower than 39 fL for RDW SD, 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 MCHC and RDW SD Tests Are Done :

If your doctor wants MCHC and RDW SD tests on you, you may need to go through these tests. During the MCHC and RDW SD 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 MCHC and RDW SD Test reports by your pathologist.

Medical References

• WebMD – MCHC Blood Test
• NIH – Normal and Abnormal Complete Blood Count With Differential
• MedlinePlus – CBC blood test