What does high WBC and RDW SD mean in blood test?

High WBC and RDW SD can be caused by numerous problems.

High levels of WBC and RDW SD in the blood indicate a variety of health problems. If your blood WBC level is between 4 thou/uL to 11 thou/uL and the RDW SD level is between 39 thou/uL to 46 fL, then your body does not have any underlying health problems. But if WBC and RDW SD levels exceed these levels, you should see a doctor immediately.

Normal WBC range : 4 - 11 thou/uL

Age-wise ideal WBC level in blood:

Age	Ideal WBC value
<5 years	4.188
5-10 years	4.385
10-15 years	4.591
15-20 years	4.807
20-25 years	5.033
25-30 years	5.27
30-35 years	5.518
35-40 years	5.777
40-45 years	6.049
45-50 years	6.333
50-55 years	6.631
55-60 years	6.943
60-70 years	7.269
70-80 years	7.611
80-90 years	7.969
90-100 years	8.344
>100 years	8.736

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

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

1,37,160

Total number of patients treated

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

• Infections, most commonly caused by bacteria and some viruses, less commonly by fungi or parasites
• Bone marrow damage
• Overwhelming infections (e.g., sepsis)
• Inflammation or inflammatory conditions such as vasculitis or inflammatory bowel disease
• Myelodysplastic syndrome

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

Age-wise ideal RDW SD level in blood:

Age	Ideal RDW SD value
<5 years	40.833
5-10 years	42.752
10-15 years	44.761
15-20 years	44.662
20-25 years	44.563
25-30 years	44.464
30-35 years	44.366
35-40 years	44.268
40-45 years	44.171
45-50 years	44.073
50-55 years	43.975
55-60 years	43.878
60-70 years	45.94
70-80 years	45.838
80-90 years	45.736
90-100 years	45.635
>100 years	45.534

High WBC and RDW SD levels in the blood can cause a number of health problems. Your GP may recommend follow-up tests to get an important picture of your overall health and well-being. If the results are greater than 11 thou/uL for WBC and more than 46 fL for RDW SD, you may also need some follow-up tests that will help detect the underlying disease early.

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How is a blood test performed in the lab?

Depending on the symptoms you are experiencing, your doctor may order a WBC and RDW SD test. In most hospitals WBC and RDW SD results can be obtained within three to six hours after blood is taken. The blood is usually drawn from a vein on the inside of the elbow or the back of the hand. Drink plenty of water before your appointment. If you experience any symptoms that you are concerned about are out of the ordinary, call your doctor immediately.