A C-Reactive Protein (CRP) test measures the level of CRP, a protein produced by your liver in response to inflammation. It’s a general marker of inflammation in the body.
What This Test Measures
C-Reactive Protein (CRP):
CRP is an acute-phase reactant – it rises rapidly in response to inflammation, infection, or tissue injury, and falls when the condition resolves. It’s a non-specific marker, meaning it indicates inflammation is present but not the cause.
Reference Ranges
Standard CRP:
• Normal: Less than 10 mg/L
• Elevated: 10-100 mg/L suggests moderate inflammation
• Very High: Above 100 mg/L suggests severe infection or inflammation
CRP vs. hs-CRP
This standard CRP test is different from hs-CRP (high-sensitivity CRP):
• Standard CRP: Detects higher levels of inflammation (infections, autoimmune flares, injuries)
• hs-CRP: Detects low-grade inflammation for cardiovascular risk assessment
If you’re interested in heart disease risk, consider the hs-CRP test instead.
Who Should Consider This Test
• Those with symptoms of infection (fever, chills)
• Monitoring autoimmune or inflammatory conditions:
– Rheumatoid arthritis
– Inflammatory bowel disease
– Lupus
• Evaluating unexplained symptoms
• Post-surgical monitoring
• Assessing response to treatment for inflammatory conditions
• Differentiating bacterial vs. viral infections (bacteria typically cause higher CRP)
How It Works
1. Order your test online – no doctor visit required
2. Visit any Quest Diagnostics location nationwide
3. Simple blood draw takes approximately 5 minutes
4. Results delivered to your secure portal within 1-2 business days
Preparation
No fasting required.
Related Tests to Consider
• hs-CRP – For cardiovascular risk assessment
• ESR (Sed Rate) – Another inflammation marker
• CBC with Differential – Evaluate white blood cells
• Comprehensive Metabolic Panel – Overall health assessment
Why Choose Wittmer Rejuvenation Clinic
At $27, our CRP test is competitively priced compared to typical hospital charges. We partner with Quest Diagnostics for reliable, CLIA-certified laboratory testing with convenient locations across all 50 states.
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