What causes high Sodium and low RDW SD?

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

If your Sodium is in between 136 mmol/L and 145 mmol/L and your RDW SD is in between 39 fL and 46 fL then you need not worry as these are the normal ranges for Sodium 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 Sodium : 136 - 145 mmol/L

Ideal values of Sodium depending on age :

Age	Ideal Sodium value
<5 years	138.407
5-10 years	140.857
10-15 years	143.35
15-20 years	143.305
20-25 years	143.26
25-30 years	143.215
30-35 years	143.17
35-40 years	143.125
40-45 years	143.08
45-50 years	143.036
50-55 years	142.991
55-60 years	142.946
60-70 years	142.901
70-80 years	142.856
80-90 years	142.812
90-100 years	142.767
>100 years	142.722

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

If you want your blood test report to be interpreted by Sodium specialist, then you can upload your report. Our Sodium 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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Total number of patients treated

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

• Conditions that lead to too much anti-diuretic hormone (ADH)
• Cushing syndrome
• Nephrotic syndrome
• Diabetes insipidus
• Excess fluid buildup in the body (edema) caused by heart failure

If you want your blood test report to be interpreted by Sodium specialist, you can upload your report. Our Sodium 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	39.69
5-10 years	40.393
10-15 years	41.108
15-20 years	41.836
20-25 years	42.576
25-30 years	43.33
30-35 years	44.097
35-40 years	44.878
40-45 years	45.672
45-50 years	45.657
50-55 years	45.643
55-60 years	45.629
60-70 years	45.615
70-80 years	45.6
80-90 years	45.586
90-100 years	45.572
>100 years	45.558

High Sodium and low RDW SD can be caused by a lot of reasons. If you take Sodium and RDW SD blood tests and the results are higher than 145 mmol/L for Sodium 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 Sodium and RDW SD Tests Are Done :

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