C-Reactive Protein test (CRP)

C-Reactive Protein test (CRP)

What is C-reactive protein test?

C-reactive protein test (CRP) is used by your doctor to detect inflammation diseases. C-reactive protein is produced in liver with the response to inflammations. In the blood, high level of CRP is a marker of any inflammation condition that is caused from an upper respiratory infection leading to cancer. It also indicates inflammation conditions in the arteries of the heart, which means more increasing chances of heart attacks. It’ very crucial to remember, C-reactive protein test is a nonspecific test and elevated for any inflammatory conditions.

Sometimes C-reactive protein test is ordered with erythrocyte sedimentation rate (ESR) test to detect inflammations. CRP test is not always specific enough for treatment of a particular disease. But it is used as a general marker for infection and inflammation conditions. CRP also helps doctors to confirm it well for further necessary testing and treatment. Other tests may be recommended to identify the cause of inflammation depending on suspected cases.

For C-reactive protein test, blood sample is drawn by inserting a needle into a vein in the arm. No test preparation is required. You can eat normally throughout the day for the test. There are two type CRP test. One is standard C – reactive protein test. Another is hs-CRP test.

Why C-reactive protein test is done?

C-reactive protein test is used to detect and monitor inflammation in a person with the possibility of acute conditions listed below.

  • Severe bacterial infection like sepsis
  • Fungal infections
  • Pelvic inflammatory diseases (PID)
  • Inflammatory bowel disease (IBD)
  • Arthritis
  • Autoimmune diseases like lupus or vasculitis

C-reactive protein test is helpful in assessment of the risks of heart disease such as patient with high cholesterol levels. CRP test is benefit for outweigh potential complications, especially for patients having major risks for heart diseases or stroke recovering from recent surgeries. It is a type of low risk routine test, but there are some few risk at time of sample collection listed below.

  • Excessive bleeding
  • Lightheadedness
  • Chances of infections at the puncture sites

The report for C-reactive protein test

The amount of CRP is measured in milligrams of per liter in blood (mg/L). Generally low CRP level is better than high, because it indicates less inflammation. Especially high CRP level of greater than 10 mg/L may indicate acute conditions listed below.

  • Major bone infections such as osteomyelitis
  • Arthritis conditions
  • Inflammatory bowel disease (IBD)
  • Tuberculosis (TB)
  • Lupus
  • Connective tissue disorders
  • Autoimmune diseases
  • Cancer such as lymphoma
  • Pneumonia


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