What does high RDW and CRP mean in blood test?

High RDW and CRP can be caused by numerous problems.

High levels of RDW and CRP in the blood indicate a variety of health problems. If your blood RDW level is between 11.6 % to 14 % and the CRP level is between 0 % to 3 mg/L, then your body does not have any underlying health problems. But if RDW and CRP levels exceed these levels, you should see a doctor immediately.

Normal RDW range : 11.6 - 14 %

Age-wise ideal RDW level in blood:

Age	Ideal RDW value
<5 years	12.241
5-10 years	12.918
10-15 years	13.632
15-20 years	13.59
20-25 years	13.549
25-30 years	13.507
30-35 years	13.466
35-40 years	13.425
40-45 years	13.384
45-50 years	13.343
50-55 years	13.302
55-60 years	13.262
60-70 years	13.995
70-80 years	13.952
80-90 years	13.91
90-100 years	13.867
>100 years	13.825

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

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

• Crohn's disease
• Chronic liver disease
• Thalassemia, an inherited blood disorder
• An iron or vitamin deficiency
• Heart disease

If you want your blood test report to be interpreted by RDW specialist, you can upload your report. Our RDW 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 CRP range : 0 - 3 mg/L

Age-wise ideal CRP level in blood:

Age	Ideal CRP value
<5 years	0.11608
5-10 years	0.1225
10-15 years	0.12927
15-20 years	0.13642
20-25 years	0.14396
25-30 years	0.15192
30-35 years	0.16032
35-40 years	0.16919
40-45 years	0.17855
45-50 years	0.18842
50-55 years	0.19884
55-60 years	0.20984
60-70 years	0.22144
70-80 years	0.23369
80-90 years	0.24661
90-100 years	0.26025
>100 years	0.27464

High RDW and CRP 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 14 % for RDW and more than 3 mg/L for CRP, 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 RDW and CRP test. In most hospitals RDW and CRP 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.