Anti-RNP
- Sample Type
- Standard
- Fasting
- No
- Unit
- Index
Anti-Ribonucleoprotein (RNP) antibodies are a type of Extractable Nuclear Antigen (ENA). They are the diagnostic hallmark of Mixed Connective Tissue Disease (MCTD), where high titers are almost always present. They may also be found in Systemic Lupus Erythematosus (SLE) and systemic sclerosis. Testing for Anti-RNP helps differentiate between various systemic autoimmune rheumatic diseases (SARDs).
Check Your Result
Check Your Result
Enter your lab result to see where you stand compared to the standard reference range.
Why Context Matters
A positive Anti-RNP can occur in patients with overlapping symptoms of different autoimmune diseases, making a definitive diagnosis difficult without clinical correlation (e.g., Raynaud's, synovitis, or myositis). Some healthy individuals may also show low-level positives.
Lab ranges are statistical averages, not biological laws. "Normal" for a 20-year-old male isn't normal for a 60-year-old female.
Clinical References
Source-of-truth databases and clinical guidelines for Anti-RNP:
Official Sources
- Mixed connective tissue disease: state of the art on clinical practice guidelines - PubMedpubmed.ncbi.nlm.nih.gov
- Mixed Connective Tissue Disease - StatPearls - NCBI Bookshelfncbi.nlm.nih.gov
Research & Guidelines
- PubMed: Anti-RNP Clinical GuidelinesNCBI / PubMed
Related Indicators
Medically Reviewed by Dr. Binoy Babu, MBBS
Board Certified Doctor • 10+ Years Clinical Experience
Dr. Babu is a practicing physician dedicated to empowering patients with clear, actionable medical information. He founded 2opi to bridge the gap between complex lab reports and patient understanding, ensuring everyone has access to a reliable second opinion.
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