What Is a C-Reactive Protein (CRP) Test?


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C-Reactive Protein

C-reactive protein (CRP) is a protein produced in the liver as a response to inflammatory conditions. 

Because high levels of CRP are reliable indications of inflammation, a CRP test can be an essential initial step in detecting medical diseases that cause inflammation. Infections and autoimmune illnesses like lupus are two instances of this.

Although the CRP test cannot determine the location of the inflammation or what is causing it, the results might put your healthcare professional in the direction of potential candidates.

The purpose of this page is to describe how the CRP test is used, what is the CRP test price how it is conducted, and what to expect before, during, and after the test. It also explains how the data are interpreted, giving you a say in treatment decisions.

The Test’s Purpose

The CRP test is an all-encompassing biomarker of inflammation. It is used to determine if a person’s symptoms are the result of an inflammatory or non-inflammatory disorder. The data, when combined with additional studies, can aid in narrowing down the likely reasons. The CRP level can also indicate whether the inflammation is acute (quick and strong, as in an allergic reaction) or chronic (long-lasting) (persistent, such as with diabetes).

Despite its drawbacks, the test is a relatively accurate means of evaluating inflammation. The higher the CRP levels, the greater the inflammation in the body.

The CRP test can help in the identification of a variety of medical disorders, including:

  • Allergic reactivity
  • Asthma
  • Rheumatoid arthritis and lupus are examples of autoimmune diseases.
  • Bacterial contamination
  • Cancer
  • The celiac disease
  • Chronic obstructive pulmonary disease (COPD) (COPD)
  • The disease of the connective tissues
  • Diabetes Coronary Heart Attack
  • Atherosclerosis and myocarditis are two types of heart disease.
  • Blood pressure is too high (hypertension)
  • IBD (Irritable Bowel Disease) (IBD)
  • Major adversity
  • Pancreatitis
  • Inflammation of the cervix (PID)
  • Pneumonia
  • Thematic (body-wide) infection with fungi
  • Aortic aneurysms and vasculitis are examples of vascular diseases.
  • Infections caused by viruses

C-reactive protein levels in the early stage of COVID-19.

COVID-19 is a new infectious illness for which there is presently no therapy. As a result, biomarkers must be studied in order to evaluate the number of lung lesions and the severity of the disease.

The purpose of this study was to see if CRP levels were useful in the early stages of COVID-19 and if they were related to lung lesions and severe presentation.

COVID-19 confirmed patients were selected from Fever Units in two locations in Guizhou, China. CRP levels were evaluated upon admission, and the diameter of the greatest lung lesion in the most severe lung lesion was determined using a lung CT scan. The diameter differences and CRP levels were examined in the following patient groups: mild, moderate, severe, and critical.


CRP levels were shown to be strongly linked with lung lesions in the early stages of COVID-19, suggesting that they may represent disease severity. The major purpose of this multi-center trial is to establish the utility of a CRP test in triaging patients who initially report moderate COVID-19 infection symptoms.

Large-scale viral testing is being recommended as part of COVID-19 management. Such tests indicate whether or not a person is infected with the virus; nevertheless, the presence of the virus has little prognostic value for the progression of COVID-19 illness. 

While proof of triage of afflicted persons is mostly based on the severity of pulmonary affection as evaluated by oxygen saturation, publication of viable treatment techniques is developing at an exponential rate.

To aid in the decision-making process the purpose of this study is to see if triage can be conducted using a basic CRP test price to decide which individuals should be hospitalized owing to the risk of developing more serious affliction.

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