C-reactive protein (CRP) with plasma concentration measurement by immunoturbidimetric assay
This test measures the level of C-reactive protein in your blood plasma, a marker often checked for signs of inflammation or infection.
["CRP helps track inflammation, guiding decisions about treatments or further testing."]
Key facts at a glance
- LOINC
- 82186-8
- Short code
- Gp B Strep DNA CSF Ql NAA+n-prb
- Synonyms
- Gp B Strep DNA CSF Ql NAA+n-prb
- Category
- coagulation
- Sample
- csf
- Container
- Sterile tube
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- non-probe-amp-tar
- Specimen volume
- 1-2 mL
- Stability
- Immediate analysis required, Refrigerated: 1h
- Hemolysis max
- 200
- TAT
- 4–24 hours
- Order
- routine
Why Is This Test Done?
Your healthcare provider may order this test to monitor conditions like infections, autoimmune diseases, or inflammation. It can also help assess response to treatment or detect early signs of problems like heart disease or certain cancers.
What to Expect Before the Test
No special preparation is needed, but you may be asked to fast for 8–12 hours before the test if it’s part of a broader metabolic or liver evaluation. Bring any medications you’re currently taking.
What Happens During the Test?
A healthcare professional will draw blood from a vein in your arm using a small needle. You may feel a brief pinch, but it usually doesn’t cause significant discomfort. The blood sample is sent to a lab for analysis.
What Do Results Mean?
Results are interpreted based on your overall health and symptoms. Elevated levels may signal inflammation, infection, or other underlying conditions, while normal levels don’t rule out all causes of inflammation.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
CRP (Plasma)
Frequently asked questions
CRP is a sensitive marker for inflammation, often used alongside other tests to diagnose or manage conditions like rheumatoid arthritis, sepsis, or cardiovascular risks. It can also help guide timing for procedures like joint injections or surgery.
A high CRP level suggests active inflammation or infection, but it doesn’t specify the cause. Your doctor will consider your symptoms, medical history, and other test results to determine next steps, such as additional imaging or treatments.
Yes, lifestyle factors like diet, exercise, and stress can influence CRP levels. Reducing inflammation through a balanced diet, regular physical activity, and managing chronic conditions may help lower CRP over time.
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy