What does high WBC and RDW mean in blood test?

High WBC and RDW can be caused by numerous problems.

High levels of WBC and RDW 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 level is between 11.6 thou/uL to 14 %, then your body does not have any underlying health problems. But if WBC and RDW 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	4.163
5-10 years	4.333
10-15 years	4.51
15-20 years	4.694
20-25 years	4.886
25-30 years	5.085
30-35 years	5.292
35-40 years	5.508
40-45 years	5.733
45-50 years	5.967
50-55 years	6.21
55-60 years	6.463
60-70 years	6.727
70-80 years	7.001
80-90 years	7.287
90-100 years	7.584
>100 years	7.893

*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

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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 range : 11.6 - 14 %

Age-wise ideal RDW level in blood:

Age	Ideal RDW value
<5 years	12.073
5-10 years	12.566
10-15 years	13.079
15-20 years	13.613
20-25 years	13.59
25-30 years	13.567
30-35 years	13.545
35-40 years	13.523
40-45 years	13.501
45-50 years	13.479
50-55 years	13.457
55-60 years	13.435
60-70 years	13.983
70-80 years	13.96
80-90 years	13.937
90-100 years	13.914
>100 years	13.891

High WBC and RDW 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 14 % for RDW, 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 test. In most hospitals WBC and RDW 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.