ANA (antinuclear antibody)
A screen for autoimmune conditions like lupus. Many healthy people test positive at low levels - so it’s only useful with symptoms.
TypeBlood test
HowStandard blood draw.
How oftenOnly with symptoms suggesting autoimmunity.
BeforeNo preparation.
WhoPeople with joint pain, rashes, mouth ulcers, fatigue or unexplained fevers.
A sensitive first screen - not a diagnosis
ANA looks for antibodies that target your own cells. It’s positive in almost everyone with lupus - but also in many healthy people. So it only means something alongside symptoms.
Negative
“Could it be lupus?”
Makes lupus very unlikely.
Reassuring
Positive, no symptoms
“Should I worry?”
Common and often not meaningful.
Often normal
Positive with symptoms
“What next?”
Leads to more specific antibody tests and a specialist.
Investigate
Is it right for you?
Worth considering if…
- You have joint pain with rashes or mouth ulcers.
- You have unexplained fatigue with other signs of autoimmunity.
- A close relative has lupus or another autoimmune condition.
A better option if…
- You have no symptoms - a positive result is common and often meaningless.
How it’s measured
ANA by immunofluorescence
The standard screen, reported as a titre and pattern.
The full picture
What is it?
A test for antibodies that target your own cell nuclei.
What type of test is it?
A blood biomarker.
What does it measure?
ANA titre and pattern.
Why might someone consider it?
To screen for autoimmune diseases.
Who is it most relevant for?
People with suggestive symptoms.
How is it performed?
A blood draw.
How often might it be considered?
When symptoms suggest it.
What can the result help you understand?
Whether further autoimmune testing is needed.
What are its limitations?
Positive in up to 1 in 5 healthy people.
What should it be viewed with?
Symptoms, ESR, CRP and specific antibody tests.
Where to get it
Through your provider
Usually ordered when symptoms or results point to it.
Lab services
e.g. Quest Diagnostics, Labcorp - typically with a provider order.
Specialists
Your provider may refer you to a specialist to interpret it.
Names are examples only, not endorsements. Your provider can often order the same test - and help interpret it.
Connected to
Questions to ask your provider
- Do my symptoms justify an ANA test?
Ziva Health
One test is a snapshot. Ziva shows the whole story.
Ziva brings your lab results, wearables and daily readings together - and Isabella tells you what’s changing and what to ask your provider next.
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Being listed doesn’t mean everyone needs this test. Educational only — not medical advice. Results should be interpreted with a qualified clinician. ← Back to Know What to Test