What causes high CRP and low HbA1c?

High CRP and low HbA1c can be caused by many reasons.

If your CRP is in between 0.1 mg/L and 3 mg/L and your HbA1c is in between 4 % and 5.7 % then you need not worry as these are the normal ranges for CRP and HbA1c respectively. But if your levels are lesser or greater than the above values, then there may be some problem in your body.

Some examples of conditions that can increase or decrease CRP levels include:

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

Normal range of CRP : 0.1 - 3 mg/L

Ideal values of CRP depending on age :

Age	Ideal CRP value
<5 years	0.11349
5-10 years	0.11709
10-15 years	0.1208
15-20 years	0.12463
20-25 years	0.12858
25-30 years	0.13266
30-35 years	0.13687
35-40 years	0.14121
40-45 years	0.14569
45-50 years	0.15031
50-55 years	0.15507
55-60 years	0.15999
60-70 years	0.16506
70-80 years	0.17029
80-90 years	0.17569
90-100 years	0.18126
>100 years	0.18701

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

Normal range of HbA1c : 4 - 5.7 %

Ideal values of HbA1c depending on age :

Age	Ideal HbA1c value
<5 years	4.127
5-10 years	4.258
10-15 years	4.393
15-20 years	4.532
20-25 years	4.676
25-30 years	4.824
30-35 years	4.977
35-40 years	5.135
40-45 years	5.298
45-50 years	5.466
50-55 years	5.639
55-60 years	5.634
60-70 years	5.629
70-80 years	5.623
80-90 years	5.617
90-100 years	5.611
>100 years	5.605

High CRP and low HbA1c can be caused by a lot of reasons. If you take CRP and HbA1c blood tests and the results are higher than 3 mg/L for CRP and lower than 4 % for HbA1c, 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 HbA1c Tests Are Done :

If your doctor wants CRP and HbA1c tests on you, you may need to go through these tests. During the CRP and HbA1c 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 HbA1c Test reports by your pathologist.

Medical References

• MedlinePlus – C-Reactive Protein (CRP) Test
• Mayo Clinic – C-reactive protein test
• Cleveland Clinic – C-Reactive Protein (CRP) Test: What It Is, Purpose & Results