Quick Reference
- Full form
- Antinuclear Antibody
- Sample type
- Blood
- Fasting
- Not required
- Marker measured
- 1
- Report turnaround
- Next day
- Available at
- All locations
About ANA (Antinuclear Antibody) by ELISA
The ANA test screens for autoimmune activity, where your immune system mistakenly targets your own cells. It is commonly ordered when a patient has unexplained joint pain, fatigue, skin rashes, or other symptoms suggestive of conditions like lupus.
A positive ANA does not confirm a specific diagnosis on its own, since it can appear in several autoimmune conditions or even in healthy people at low levels. Your doctor will usually follow up with more specific antibody tests to narrow things down.
How to Prepare
- No fasting required.
- Tell your doctor about any current medications, some can affect the result.
Frequently Asked Questions
What does a positive ANA test mean?
It suggests your immune system may be producing antibodies against your own cells, which is seen in autoimmune conditions like lupus, though further specific testing is usually needed to confirm a diagnosis.
Do I need to fast before an ANA test?
No fasting is required.
Can a healthy person have a positive ANA result?
Yes, low-level positive results can occur in healthy individuals, which is why your doctor interprets this alongside your symptoms and other tests.
What symptoms lead doctors to order an ANA test?
Unexplained joint pain, persistent fatigue, skin rashes, or fever without a clear infection are common reasons for ordering this test.
How soon will my ANA report be ready?
Next day, since this is a specialised antibody test processed by ELISA.
Is home sample collection available for ANA testing?
Yes, in all City Care Lab service areas.
This page provides general health information and is not a substitute for medical advice. Speak with your doctor about your specific results and treatment.