Description
Why It’s Done:
The CRP quantitative test is typically ordered for the following reasons:
• Detect and monitor inflammation: Elevated CRP levels indicate the presence of inflammation in the body. It is commonly used to monitor conditions such as:
o Infections (bacterial, viral, fungal)
o Autoimmune diseases (e.g., rheumatoid arthritis, lupus, inflammatory bowel disease (IBD))
o Vasculitis (inflammation of blood vessels)
o Pneumonia or other respiratory infections
o Chronic inflammatory conditions like systemic lupus erythematosus (SLE) or Crohn’s disease
• Monitor disease activity: The CRP test can help track the progression of conditions that involve chronic inflammation, providing an indication of how well a patient is responding to treatment or whether the disease is in remission.
• Evaluate cardiovascular risk: A high-sensitivity CRP (hs-CRP) test is a quantitative version of the CRP test used to assess the risk of heart disease. High CRP levels are linked to increased risk of atherosclerosis and heart attack.
• Evaluate infection severity: CRP is a useful marker to help differentiate between bacterial and viral infections, as bacterial infections typically result in much higher CRP levels compared to viral ones.
Common symptoms or conditions prompting the CRP test include:
• Pain, swelling, or redness (indicating possible inflammation)
• Fever, chills, or unexplained weight loss
• Chest pain (when evaluating risk of heart disease or inflammation)
• Joint pain or stiffness (in conditions like rheumatoid arthritis or lupus)
• Fatigue and general malaise
• Abdominal pain (in cases of suspected inflammatory bowel disease)
Preparation:
• No fasting required: The CRP quantitative test typically does not require any special preparation, and you can eat and drink as usual before the test.
• Medications: It is important to inform your healthcare provider about any medications you are taking. Certain medications, like steroids, anti-inflammatory drugs, or immunosuppressants, can influence CRP levels.
• Recent health events: If you have had a recent infection, injury, or surgery, these could temporarily elevate CRP levels. Make sure to mention any recent health events to your healthcare provider.
• Chronic conditions: If you have chronic inflammatory conditions, such as rheumatoid arthritis, lupus, or IBD, this may affect your CRP levels, and your doctor will interpret the results in this context
