Key Takeaways
- The ANA test looks for antibodies against the body's own cell nuclei. It is the first-line screening test for lupus and several related conditions.
- A positive ANA is common in healthy people: around 1 in 7 adults has a positive ANA at 1:80, usually with no disease.
- The titre and pattern matter. Low titres (1:40 to 1:80) are often not significant; higher titres with symptoms need follow-up.
- A negative ANA makes lupus very unlikely. A positive ANA needs follow-up tests such as anti-dsDNA and an ENA panel, guided by symptoms.
- At DCDC, the ANA test is AED 149. ESR and rheumatoid factor are AED 99 each.
The ANA test (antinuclear antibody test) is one of the most requested autoimmune blood tests, and one of the most misunderstood. A positive result can sound alarming, yet most people with a positive ANA never develop an autoimmune disease. The test is most useful when there are symptoms that suggest a connective tissue disease, such as joint pain with swelling, unexplained rashes, mouth ulcers or Raynaud's. This guide explains what the result, the titre and the pattern mean, which tests come next and how to arrange testing through DCDC's autoimmune testing service.
What is an ANA test?
The immune system normally makes antibodies against germs. In autoimmune disease, it can make antibodies against the body's own tissues. Antinuclear antibodies target components of the cell nucleus. The reference method is indirect immunofluorescence (IIF) on HEp-2 cells: the patient's serum is applied to cells on a slide and examined under a fluorescence microscope. Some laboratories use automated immunoassays instead. Your report should state the method, which affects how it is interpreted.
When is an ANA test useful?
ANA testing helps most when the clinical picture suggests a systemic autoimmune rheumatic disease, for example:
- Joint pain with swelling or morning stiffness, especially in several small joints
- A rash on the cheeks or sun-exposed skin, mouth ulcers or unexplained hair loss
- Raynaud's phenomenon (fingers turning white or blue in the cold)
- Dry eyes and dry mouth (possible Sjögren's disease)
- Unexplained fever, low blood counts, protein in the urine or chest pain on breathing
The American College of Rheumatology advises against ordering ANA panels for vague symptoms like tiredness alone, because a positive result in that setting is more likely to cause worry than to find disease.
Understanding your ANA titre
If the test is positive by IIF, the laboratory dilutes the sample to find the highest dilution that still shows fluorescence. A higher second number means more antibody.
| Titre | How it is usually interpreted |
|---|---|
| Negative (below 1:40 or 1:80) | No significant ANA detected. Lupus is very unlikely. |
| 1:40 to 1:80 | Low positive. Common in healthy people, older adults, women and after infections. Usually not significant without symptoms. |
| 1:160 | Moderate. More likely to be meaningful if symptoms or other test results fit. |
| 1:320 and above | High. More strongly associated with autoimmune disease, but still not a diagnosis on its own. |
General interpretation; laboratories use different starting dilutions and cut-offs.
Under the 2019 EULAR/ACR classification criteria for lupus, an ANA of at least 1:80 on HEp-2 cells is the entry requirement, which shows how sensitive the test is. More than 95% of people with lupus are ANA positive, but a positive ANA is far from specific for lupus.
What does the ANA pattern mean?
| Pattern | Possible associations |
|---|---|
| Homogeneous | Lupus, drug-induced lupus; also seen in healthy people |
| Speckled | The most common pattern; Sjögren's, lupus, mixed connective tissue disease, scleroderma |
| Nucleolar | Systemic sclerosis (scleroderma), overlap syndromes |
| Centromere | Limited systemic sclerosis, Raynaud's |
| Dense fine speckled (DFS70) | Usually found in people without autoimmune disease |
Patterns suggest which follow-up tests to order; they do not diagnose a condition.
Why ANA can be positive without autoimmune disease
A large US population study found that about 13-14% of people aged 12 and over had a positive ANA at a 1:80 dilution. A positive ANA becomes more common with age and is more common in women. Other causes include:
- Recent viral infections
- Some medicines, including hydralazine, procainamide, isoniazid and certain biologics
- Thyroid autoimmunity (Hashimoto's or Graves')
- Chronic liver disease and some cancers
- A family history of autoimmune disease
What tests come after a positive ANA?
Follow-up depends on symptoms and the pattern. Commonly used tests include:
- Anti-dsDNA: more specific for lupus and can track disease activity
- ENA panel: anti-Sm, anti-RNP, anti-Ro/SSA, anti-La/SSB, anti-Scl-70, anti-Jo-1
- Complement levels (C3, C4), a full blood count, kidney function and a urine test
- Inflammatory markers: ESR and CRP (see our CRP vs ESR guide)
- Rheumatoid factor and anti-CCP if inflammatory arthritis is suspected
Our autoimmune panel guide compares individual tests with a broader panel.
ANA test price in Dubai
| Test at DCDC | Price (AED) |
|---|---|
| ANA (antinuclear antibody) | 149 |
| ESR | 99 |
| Rheumatoid factor (RF) | 99 |
| CRP | 149 |
| CBC | 149 |
| Home sample collection (added per visit) | 199 |
Prices from DCDC's current laboratory rates. Follow-up antibody tests are priced on request.
What to Expect at DCDC
- No fasting is needed. Tell us about any medicines you take, as some can cause a positive ANA.
- Blood draw at our Dubai Healthcare City laboratory, or at home with collection for AED 249 per visit.
- Results: most autoimmune tests are reported within 24 to 48 hours; some specialist antibodies take longer.
- Clinical review: our internal medicine doctors can interpret a positive ANA and decide whether follow-up tests or a rheumatology referral are needed.
Book an ANA blood test
ANA AED 149, with ESR and RF AED 99 each. Walk in to our MOHAP-licensed lab or book home collection.
Call +971 54 219 5008 or WhatsApp 971509703884. Building 64, Block A, Al Razi Medical Complex, Dubai Healthcare City. Open Saturday to Thursday 8AM-10PM, Friday 9AM-9PM.
Related Services at DCDC
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Frequently Asked Questions
Treat ANA as a signpost, not a verdict
A positive ANA is a reason to look at the whole picture, not a diagnosis. The titre, the pattern and above all your symptoms decide whether further tests are needed.
If your result is positive and you feel well, a calm review with a doctor is the right next step. If you have new joint swelling, rashes, chest pain or blood in the urine, seek assessment promptly.
Sources & References
This article references the following sources:
- American College of Rheumatology - Position Statement: Methodology of Testing for Antinuclear Antibodies
- Satoh M, et al. Prevalence and sociodemographic correlates of antinuclear antibodies in the United States. Arthritis Rheum. 2012
- Aringer M, et al. 2019 EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus
- MedlinePlus - ANA (Antinuclear Antibody) Test
- International Consensus on ANA Patterns (ICAP)
This information is educational and does not replace individual medical advice. See our editorial policy for more information.
Written by
DCDC Editorial Team
Patient education
Patient information from Doctors Clinic Diagnostic Center in Dubai Healthcare City, based on the medical references listed with this article. This guide supports discussion with your clinician and does not provide an individual diagnosis.
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