Frequently Asked Questions
What are the normal levels of CRP, C – Reactive Protein Serum?
CRP is usually measured in mg/L. Some laboratories measure it in mg/dL. The values are as given below:
- Normal: Less than 0.9 mg/dL
- High: 0.3 to 1.0 mg/dL
- Moderately high: 1 to 10 mg/dL
- Severely high: More than 50 mg/dL
What are the factors that affect the C-reactive Protein test?
The following factors affect a CRP test –
- Obesity
- Depression
- Lack of sleep
- Pregnancy
- Estrogen-based medications like birth control pills
- Chronic conditions like autoimmune diseases
- Common cold
- Smoking
- Gingivitis
- Recent injury
- Diabetes
What other tests are ordered along with the CRP test?
Other tests that can be prescribed along with the CRP test depend upon the condition for which a CRP test has been recommended by your doctor. For example, a hs-CRP test (high-sensitivity C-reactive Protein test) may be prescribed for diagnosing the risk of heart disease. Consult your doctor for more information.
What is CRP, C – Reactive Protein Serum test also known as ?
- C-reactive Protein Test
- CRP Blood Test
In which conditions does CRP rise?
CRP test is usually done to diagnose or rule out certain conditions. People who have symptoms of the following conditions should go for a CRP test:
- Fungal infection
- Inflammatory Bowel Disease (IBS)
- Sepsis
- Arthritis
- Heart disease
- Risk of second heart attack
- Rheumatic fever
- SLE (Systemic lupus erythematosus)
- Rheumatoid Arthritis
- Pelvis Inflammatory Disease
- Cancer
- Organ or tissue injury
- Inflammation of the lining of the heart (Pericarditis)
- Osteomyelitis
Is fasting required before taking the CRP Blood Test?
No special preparation, including fasting, is required for a CRP blood test. However, it is best to follow any specific instructions provided by your healthcare provider or the pathology collection centre.
Can a CRP Test detect cancer?
Although high CRP levels can be linked to certain types of cancer, the CRP test itself cannot specifically detect cancer. It is a non-specific test that detects inflammation, and further diagnostic tests are required to identify the underlying cause.
What can cause high CRP levels besides inflammation?
High CRP levels may also be caused by infections, obesity, smoking, poor diet, or chronic conditions like heart disease, not just visible inflammation.
Is the CRP test painful?
No, the CRP test involves a simple blood draw. You may feel a small pinch, but it’s quick, safe, and nearly painless.
What are the types of CRP tests?
There are two types: standard CRP test for general inflammation and high-sensitivity CRP (hs-CRP) test for detecting cardiovascular risk and subtle inflammation.
Can CRP tests diagnose COVID-19?
CRP tests can’t confirm COVID-19 but help assess inflammation severity. Elevated levels may support monitoring in COVID-19 cases alongside other diagnostic tools.
Is CRP 20 too high?
A CRP test result of 20 mg/L suggests moderate inflammation or infection. While this level is above the normal range, the specific cause and severity can only be determined by your doctor after considering your symptoms and medical history.
Is the CRP test accurate?
The CRP test is a reliable and widely used marker of inflammation in the body. However, the test doesn’t identify the exact cause or location of inflammation. Abnormal results must be correlated with your symptoms and followed up with additional diagnostic tests as needed.
What happens after a CRP test?
After your CRP blood test, your sample will be analysed in a laboratory, and the results will be sent to your doctor. Your doctor will review the results and discuss them with you in the context of your overall health. Depending on the findings, they may recommend further tests, treatments, or lifestyle changes to address any underlying issues.
Can CRP show infection?
Yes, elevated CRP levels can indicate the presence of an infection in your body. CRP is a sensitive marker that rises in response to inflammation caused by bacterial, viral, or fungal infections. However, the CRP test alone cannot determine the specific type or location of the infection, so your doctor may order additional tests to identify the cause.
Does a CRP positive mean fever?
Elevated CRP often coincides with fever since both are signs of inflammation. However, it’s possible to have high CRP without fever, or vice versa. The presence of fever depends on the specific underlying condition triggering the inflammatory response.
Can high CRP cause tiredness?
High CRP levels alone do not directly cause tiredness or fatigue. However, the underlying conditions that lead to elevated CRP, such as infections, autoimmune disorders, or chronic diseases, can often cause fatigue as a symptom. If you are experiencing persistent tiredness along with high CRP, consult your doctor to identify and address the root cause.
Can lack of sleep raise CRP?
Studies suggest that chronic sleep deprivation and poor sleep quality are associated with higher CRP levels. Sleep disruptions can trigger low-grade inflammation, while inflammation from other causes can worsen sleep.
The CRP test is a simple blood test that measures the level of C-reactive protein (CRP) in your body. CRP is produced by the liver and released into the bloodstream in response to inflammation. Doctors often order this test to help diagnose or monitor conditions that cause inflammation, such as infections, autoimmune diseases, and chronic illnesses. While the CRP test does not pinpoint the exact location or cause of inflammation, it provides valuable insights to guide further testing and treatment decisions.
What is CRP?
C-reactive protein (CRP) is a substance produced by the liver as part of your body’s natural defence mechanism. When there is injury, infection, or tissue damage, CRP levels rise quickly in the bloodstream. Elevated CRP is a general marker that signals an active inflammatory process somewhere in the body, although it does not identify the specific source. CRP plays a crucial role in the immune system’s response to inflammation and is an important indicator of overall health.
What is a C-Reactive Protein (CRP) Test?
A CRP blood test is a laboratory analysis that measures the amount of CRP in your blood sample. Since CRP levels can rise sharply in response to inflammation, this test helps detect acute or chronic inflammatory conditions and monitor the effectiveness of treatment. The CRP test is commonly used alongside other investigations to evaluate symptoms like unexplained fever, pain, or swelling. It provides doctors with valuable information to make informed decisions about your care.
What are the Parameters tested under CRP Test?
The CRP test primarily measures the level of C-reactive protein (CRP) in the blood. Here’s what the parameters indicate:
- CRP Level: This is the main parameter measured, indicating the presence and severity of inflammation in the body.
- Normal Levels (less than 5 mg/L or 0.3 mg/dL): Minimal or no inflammation
- Minor Elevation (0.3 to 1.0 mg/dL): Mild inflammation or non-specific causes such as high BMI or minor autoimmune disease activity
- Moderate Elevation (1.0 to 10 mg/dL): Moderate inflammation due to infections, autoimmune diseases, or other inflammatory conditions
- Marked Elevation (greater than 10 mg/dL): Significant inflammation associated with acute bacterial infections, systemic vasculitis, or major trauma
- High-Sensitivity CRP (hs-CRP): This parameter assesses cardiovascular disease risk. Levels less than 1.0 mg/L indicate low risk, 1.0 to 3.0 mg/L suggest moderate risk, and greater than 3.0 mg/L indicate high risk.
Reasons for Undergoing the CRP Test
There are several key reasons why your doctor may recommend a CRP test:
- To detect inflammation caused by infection, injury, or chronic conditions
- To monitor disease activity or flare-ups in autoimmune disorders like rheumatoid arthritis or lupus
- To assess your response to anti-inflammatory treatments
- To help evaluate your risk of cardiovascular disease (using high-sensitivity CRP)
- As part of investigating unexplained symptoms, such as persistent fever or fatigue
By measuring CRP levels, the test offers insights into your body’s inflammatory status, aiding in diagnosis and guiding appropriate interventions.
Eligibility for CRP Test
Doctors may recommend a CRP blood test for people who:
- Show signs of acute infection, such as fever, chills, or rapid heartbeat
- Have been diagnosed with chronic inflammatory or autoimmune disorders
- Need monitoring to assess the effectiveness of treatment for inflammation
- Are at risk for cardiovascular disease (using the high-sensitivity CRP test)
- Present with unexplained symptoms that may relate to an underlying inflammatory process
Who Should Get a CRP Test?
The CRP test is often recommended for:
- Individuals with suspected infections, especially when the source is unclear
- Patients with autoimmune diseases like rheumatoid arthritis, lupus, or inflammatory bowel disease
- Those undergoing treatment for chronic inflammatory conditions, to track progress
- Adults at intermediate risk for heart disease (using the high-sensitivity CRP test)
Why is the CRP Test Done?
The primary reasons for conducting a CRP test include:
- To help identify or confirm the presence of inflammation in the body
- To monitor disease activity or treatment response in chronic inflammatory or autoimmune conditions
- To assist in diagnosing infections when symptoms are unclear or nonspecific
- To help assess cardiovascular risk in conjunction with other factors (using high-sensitivity CRP)
By measuring CRP levels, doctors gain valuable insights into your body’s inflammatory status, enabling more targeted and effective care.
What are the advantages of CRP Test?
Taking a CRP test provides valuable insights into your health and can help your doctor monitor or diagnose various conditions early. It’s a simple blood test but can guide important treatment decisions.
Key benefits include:
- Early detection of inflammation: Helps identify infections and inflammatory responses in the body.
- Monitoring chronic illness: Useful in tracking conditions like arthritis or lupus.
- Checking treatment response: Doctors use it to see if medications are effectively reducing inflammation.
- Cardiovascular risk screening: High-sensitivity CRP tests help assess your risk of heart disease.
- Guidance during pregnancy: If there are signs of infection, especially during premature rupture of membranes.
- Support in unclear diagnoses: When symptoms are vague, CRP levels can provide diagnostic direction.
Understand the CRP Test
How to Book a CRP Test?
Hospitalanddoctors.com Healthcare makes it easy to book a CRP test from the comfort of your home:
- Visit the Hospitalanddoctors.com Healthcare website or your nearest collection centre.
- Select the CRP test or a package that includes it from the test menu.
- Choose home sample collection or book an appointment at a Hospitalanddoctors.com lab.
- Provide necessary details and complete payment securely online.
- A trained phlebotomist will arrive at your location to collect the blood sample.
In how much time will I get CRP Test report?
Typically, CRP test reports are available within 4 hours, though this timeframe may vary based on when the sample is collected and processed
Where can I see or get CRP Test results?
At Hospitalanddoctors.com Healthcare, your CRP Test results are typically shared directly with your doctor, who will review them with you. You can also access your reports through our secure online portal. Additionally, we send reports via email or SMS, allowing you to download them conveniently on your device.
Is home sample collection available for CRP Test?
Yes, you can get the CRP tests done at home via labs like Hospitalanddoctors.com Healthcare, where a trained phlebotomist will visit your home to collect the required samples.
What is the Normal CRP Test Range?
Typically, CRP test results are interpreted as follows:
CRP Level (mg/L) | Interpretation |
Less than 5.0 | Normal, no active inflammation |
5.0 to 10.0 | Slightly elevated, low inflammation |
More than 10.0 | Highly elevated, active inflammation |
However, CRP levels can vary based on factors like age, gender, and health conditions.
Diseases That a CRP Test Can Help Detect
The CRP test can provide clues about a variety of inflammatory diseases, such as:
- Bacterial or viral infections like pneumonia, sepsis, or tuberculosis
- Rheumatic diseases like rheumatoid arthritis, lupus, vasculitis, or polymyalgia rheumatica
- Inflammatory bowel diseases like Crohn’s disease or ulcerative colitis
- Cardiovascular disease (though a seperate high-sensitivity CRP test (hs-CRP) is performed)
- Certain cancers, like lymphoma and colorectal cancer
What Is the Importance of a CRP Test?
The CRP test is a critical tool in monitoring inflammatory conditions because:
- CRP levels rise faster than other inflammatory markers, allowing earlier detection
- Regular testing helps track disease activity and spot flare-ups before symptoms worsen
- CRP results guide treatment decisions by showing how well medications are controlling inflammation
- High-sensitivity CRP testing helps gauge heart attack and stroke risk for preventive care
- CRP monitoring can indicate complications like infections after surgery or injuries
How Is a CRP Test Done? (Step-by-Step Procedure)
A CRP blood test is a simple and quick procedure:
- The doctor cleans the area, usually the inside of your elbow.
- A tourniquet is applied to your upper arm to make the vein more visible.
- A needle is inserted into the vein to collect a blood sample.
- The blood sample is sent to a laboratory for analysis.
- A bandage is applied to the collection site after the sample is taken.
The entire process takes only a few minutes, and most people experience minimal discomfort.
How Should You Prepare for a CRP Test?
The CRP test generally doesn’t require fasting or special preparation. However, you should:
- Inform your doctor about any medications or supplements you’re taking, as some may affect results
- Avoid smoking or exercising strenuously for a few hours before the test
- Stay hydrated and eat normally (fasting is not necessary unless specified)
- Wear a short-sleeved shirt or loose clothing to allow easy access to your arm
What Can I Expect During a CRP Test?
During a CRP test, you can expect the following:
- You will be seated comfortably with your arm positioned for the blood draw.
- The collection site will be cleaned with an antiseptic before the needle is inserted.
- A small tube of blood will be drawn from a vein, usually in your arm.
- You may feel a brief sting or pinch during the needle insertion, but the process is usually over in less than five minutes.
What Can I Expect After a CRP Test?
Following your CRP blood test:
- You may have some mild soreness, redness, or bruising at the needle site for a day or two
- Resume your normal activities and diet right away (unless instructed otherwise)
- Your blood sample is processed at the lab, and the results are sent to your doctor
- Schedule a follow-up to discuss the results and next steps for your care
- If CRP is high, additional tests may be done to pinpoint the cause and guide treatment
Conditions That May Affect CRP Test Accuracy
Certain factors can influence CRP test results, including:
- Recent injury, surgery, or trauma, which can raise CRP levels temporarily
- Chronic diseases like obesity or diabetes, which may cause persistent CRP elevation
- Smoking and exposure to environmental toxins, which can increase CRP
- Pregnancy and certain hormonal medications, which may alter CRP levels
- Recent vigorous exercise, which can also cause a short-term rise in CRP
Interpreting CRP Test Results
What Your CRP Test Results May Indicate
In general, here’s what different CRP test results could mean:
- Less than 5.0 mg/L: You likely don’t have significant inflammation at the moment
- 5.0 to 10.0 mg/L: There may be low-level inflammation, but it’s not highly active
- More than 10.0 mg/L: This indicates moderate to severe active inflammation in your body
- Over 50.0 mg/L: Such high levels most often occur with serious bacterial infections
Keep in mind, CRP results must be interpreted in context with your symptoms and overall health.
What do Abnormal CRP Test Results Mean?
If your CRP test shows elevated levels, it could indicate:
- An infection (bacterial, viral, or fungal)
- An autoimmune disease like rheumatoid arthritis, lupus, or vasculitis
- Inflammation from a recent injury, surgery, or burn
- Heart disease (if high-sensitivity CRP is also elevated)
- In rare cases, certain cancers like lymphoma or colorectal cancer
However, the CRP test alone cannot diagnose these conditions. Your doctor will likely recommend other tests to pinpoint the underlying cause.
What Should You Do if Your CRP Test Results Are Abnormal?
If your CRP test results are abnormal, take the following steps:
- Schedule a follow-up with your doctor to review the results in detail
- Be prepared to discuss any symptoms you’re experiencing or changes in your health
- Ask about additional tests that may be needed to identify the source of inflammation
- If you have a known inflammatory condition, work with your doctor to optimise treatment
- Commit to lifestyle habits like a healthy diet, regular exercise, and stress management
CRP Tests/Packages That You Can Book With Hospitalanddoctors.com Healthcare
Hospitalanddoctors.com Healthcare offers several CRP test options to meet your needs:
Test/Package Name |
CRP (C-Reactive Protein) |
hs-CRP |
Please refer to the Hospitalanddoctors.com Healthcare website for the exact CRP test price for your location.
List of Parameters Considered During the CRP Test
The CRP test primarily measures the level of C-reactive protein (CRP) in the blood. Here’s what the parameters indicate:
- CRP Level: This is the main parameter measured, indicating the presence and severity of inflammation in the body.
- Normal Levels (less than 5 mg/L or 0.3 mg/dL): Minimal or no inflammation
- Minor Elevation (0.3 to 1.0 mg/dL): Mild inflammation or non-specific causes such as high BMI or minor autoimmune disease activity
- Moderate Elevation (1.0 to 10 mg/dL): Moderate inflammation due to infections, autoimmune diseases, or other inflammatory conditions
- Marked Elevation (greater than 10 mg/dL): Significant inflammation associated with acute bacterial infections, systemic vasculitis, or major trauma
- High-Sensitivity CRP (hs-CRP): This parameter assesses cardiovascular disease risk. Levels less than 1.0 mg/L indicate low risk, 1.0 to 3.0 mg/L suggest moderate risk, and greater than 3.0 mg/L indicate high risk.
Home Collection for CRP Test Near You
Hospitalanddoctors.com Healthcare offers a seamless and convenient home sample collection service for CRP blood tests, ensuring your comfort and safety without compromising on testing accuracy. A trained phlebotomist will visit you at home to collect the sample, maintaining high standards of sample handling. With a focus on reliability and quick turnaround times, Hospitalanddoctors.com Healthcare ensures that you receive precise results without the need to visit a diagnostic centre for a CRP test. Their home collection option saves you time and effort while prioritizing your health and making high-quality diagnostic testing accessible and hassle-free.
CRP Test Price in Different Cities
The CRP test price can vary slightly based on where you live and the diagnostic centre you choose. Thankfully, most labs offer affordable and transparent pricing.
Here’s an estimated price range across major Indian cities:
City | Approximate Cost (INR) |
Mumbai | ₹ 350 to ₹ 650 |
Chandigarh | ₹ 350 to ₹ 650 |
Bengaluru | ₹ 350 to ₹ 650 |
Chennai | ₹ 350 to ₹ 650 |
You can expect the CRP blood test price to be reasonably consistent, especially when using NABL or CAP-accredited labs. For convenience, many providers also offer home collection at no additional cost.
CRP Test (C-Reactive Protein) Price
₹ 620
Disclaimer: This site does not replace professional medical advice for CRP Test Also known as: CRP Test (C-Reactive Protein). Always consult your healthcare provider for concerns about your health.