What does high CRP and RDW mean in blood test?

High CRP and RDW can be caused by numerous problems.

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

Normal CRP range : 0 - 3 mg/L

Age-wise ideal CRP level in blood:

Age	Ideal CRP value
<5 years	0.11669
5-10 years	0.12378
10-15 years	0.13131
15-20 years	0.13929
20-25 years	0.14776
25-30 years	0.15674
30-35 years	0.16627
35-40 years	0.17638
40-45 years	0.1871
45-50 years	0.19848
50-55 years	0.21055
55-60 years	0.22335
60-70 years	0.23693
70-80 years	0.25134
80-90 years	0.26662
90-100 years	0.28283
>100 years	0.30003

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

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

• Inflammation
• Suspected bacterial infection
• Lupus
• Crohn disease
• Ulcerative colitis

If you want your blood test report to be interpreted by CRP specialist, you can upload your report. Our CRP 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	12.305
5-10 years	13.053
10-15 years	13.847
15-20 years	13.796
20-25 years	13.745
25-30 years	13.694
30-35 years	13.644
35-40 years	13.594
40-45 years	13.544
45-50 years	13.493
50-55 years	13.443
55-60 years	13.393
60-70 years	13.343
70-80 years	13.293
80-90 years	13.244
90-100 years	13.195
>100 years	13.997

High CRP 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 3 mg/L for CRP 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 CRP and RDW test. In most hospitals CRP 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.