What causes high CRP and low RBC?

High CRP and low RBC can be caused by many reasons.

If your CRP is in between 0 mg/L and 3 mg/L and your RBC is in between 4.5 mil/uL and 5.5 mil/uL then you need not worry as these are the normal ranges for CRP and RBC 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 CRP : 0 - 3 mg/L

Ideal values of CRP depending on age :

Age	Ideal CRP value
<5 years	0.11331
5-10 years	0.11672
10-15 years	0.12023
15-20 years	0.12385
20-25 years	0.12758
25-30 years	0.13142
30-35 years	0.13538
35-40 years	0.13945
40-45 years	0.14365
45-50 years	0.14797
50-55 years	0.15242
55-60 years	0.15701
60-70 years	0.16174
70-80 years	0.16661
80-90 years	0.17162
90-100 years	0.17679
>100 years	0.18211

*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 range of RBC : 4.5 - 5.5 mil/uL

Ideal values of RBC depending on age :

Age	Ideal RBC value
<5 years	4.635
5-10 years	4.775
10-15 years	4.919
15-20 years	5.067
20-25 years	5.22
25-30 years	5.377
30-35 years	5.372
35-40 years	5.367
40-45 years	5.363
45-50 years	5.358
50-55 years	5.353
55-60 years	5.348
60-70 years	5.343
70-80 years	5.338
80-90 years	5.499
90-100 years	5.494
>100 years	5.489

High CRP and low RBC can be caused by a lot of reasons. If you take CRP and RBC blood tests and the results are higher than 3 mg/L for CRP and lower than 4.5 mil/uL for RBC, 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 CRP and RBC Tests Are Done :

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