Antinuclear Antibody (ANA)
Screening test for antinuclear antibodies. Used to detect autoimmune diseases like lupus and Sjögren's syndrome.
Category: Inflammation & Immune
Also known as: antinuklearna at (ana)
Reference range: 0–1 COI (Source: ABIM)
Standard unit: COI
High values may indicate
Elevated levels may indicate autoimmune diseases such as systemic lupus erythematosus or Sjögren's syndrome.
Low values may indicate
Normal levels. No autoimmune activity detected.
Frequently asked questions
- What is a normal Antinuclear Antibody (ANA) level?
- A typical reference range for Antinuclear Antibody (ANA) is 0–1 COI (source: ABIM). Reference ranges vary by laboratory, age, and sex, so always compare against the range on your own lab report.
- What units is Antinuclear Antibody (ANA) measured in?
- Antinuclear Antibody (ANA) is most commonly reported in COI. Labs in different countries may use other units — you can convert between them with BloodId's blood test unit converter.
- Where do Antinuclear Antibody (ANA) reference ranges come from?
- BloodId uses ABIM standard reference ranges and educational information from MedlinePlus (see our methodology). Reference ranges still vary by lab, age, and sex, so always compare against your own report.
- Can I track Antinuclear Antibody (ANA) over time?
- Yes. Upload results from any lab and BloodId charts your Antinuclear Antibody (ANA) over time against its reference range, so you can see whether the trend is rising, falling, or stable.
Related biomarkers
Source: BloodId admin-reviewed
Analyze your Antinuclear Antibody (ANA) with AI
Chart your Antinuclear Antibody (ANA) over time
Track your Antinuclear Antibody (ANA) over time with BloodId