What causes high Packed cell volume and low RDW SD?

High Packed cell volume and low RDW SD can be caused by many reasons.

If your Packed cell volume is in between 41 % and 49.5 % and your RDW SD is in between 39 fL and 46 fL then you need not worry as these are the normal ranges for Packed cell volume 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.

Some examples of conditions that can increase or decrease Packed cell volume levels include:

• Damage to the bone marrow
• Kidney failure
• Chronic inflammatory diseases
• Excessive destruction of red blood cells
• Congenital heart disease

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Normal range of Packed cell volume : 41 - 49.5 %

Ideal values of Packed cell volume depending on age :

Age	Ideal Packed cell volume value
<5 years	41.439
5-10 years	41.882
10-15 years	42.33
15-20 years	42.783
20-25 years	43.241
25-30 years	43.704
30-35 years	44.172
35-40 years	44.645
40-45 years	45.123
45-50 years	45.606
50-55 years	46.094
55-60 years	46.587
60-70 years	47.085
70-80 years	47.589
80-90 years	48.098
90-100 years	48.613
>100 years	49.133

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

Normal range of RDW SD : 39 - 46 fL

Ideal values of RDW SD depending on age :

Age	Ideal RDW SD value
<5 years	39.417
5-10 years	39.839
10-15 years	40.265
15-20 years	40.696
20-25 years	41.131
25-30 years	41.571
30-35 years	42.016
35-40 years	42.466
40-45 years	42.92
45-50 years	43.379
50-55 years	43.843
55-60 years	44.312
60-70 years	44.786
70-80 years	45.265
80-90 years	45.749
90-100 years	45.744
>100 years	45.738

High Packed cell volume and low RDW SD can be caused by a lot of reasons. If you take Packed cell volume and RDW SD blood tests and the results are higher than 49.5 % for Packed cell volume 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 Packed cell volume and RDW SD Tests Are Done :

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