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Anahomogenserqlif

Published: August 9, 2026Updated: August 17, 2026

This blood test detects a specific pattern of antinuclear antibodies (ANA) that may indicate autoimmune diseases like systemic lupus erythematosus.

Quick summary

{"A positive homogeneous pattern suggests your immune system may be attacking your own cell nuclei","This pattern is commonly associated with systemic lupus erythematosus (SLE)","Results must be interpreted with your complete medical history and other tests","A positive result does not definitively diagnose any specific disease","Follow-up testing is usually needed to confirm the diagnosis"}

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
54149-0
Short code
ANA Homogen Ser Ql IF
Synonyms
ANA Homogen Ser Ql IF
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
0
Ref high
17
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
if
CPT
86038
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What is this test?

The Homogeneous Nuclear Ab Pattern test is a specialized blood test that looks for a specific pattern of antinuclear antibodies (ANA) in your blood. These are antibodies that target the nucleus of your own cells. The homogeneous (also called diffuse) pattern appears when the entire cell nucleus glows evenly under the microscope, suggesting antibodies are attacking components throughout the nucleus.

How is the test performed?

A healthcare professional will draw a small blood sample from a vein in your arm. The sample is then sent to a laboratory where it is processed and examined using a technique called indirect immunofluorescence. The blood serum is mixed with special cells, and then fluorescent antibodies are added to visualize whether and how the antinuclear antibodies bind to the cell nuclei.

Do I need to prepare for the test?

No special preparation is typically required. You can eat and drink normally before the test. However, inform your healthcare provider about any medications you are taking, as some drugs can affect test results. It is helpful to share your complete medical history, including any symptoms you are experiencing.

What do the results mean?

A positive homogeneous pattern indicates the presence of antinuclear antibodies in your blood. This result suggests an autoimmune process may be occurring in your body. However, a positive test alone does not diagnose a specific disease. The homogeneous pattern is most commonly associated with systemic lupus erythematosus (SLE), but it can also appear in other autoimmune conditions, certain infections, or rarely in healthy individuals, especially older adults.

Reference range

NCBI: NSE 0-17 ng/mLN/A

Specimen: serum

No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

If my test is positive, do I definitely have an autoimmune disease?
No, a positive test does not mean you definitely have a disease. Many healthy people, especially those over 65 years old, may have a positive ANA test without any autoimmune disease. Your healthcare provider will interpret your result along with your symptoms, physical examination, and other test results to determine if further testing or treatment is needed.
What happens after a positive result?
If your test is positive, your healthcare provider will likely order additional tests to determine the specific type of autoimmune condition. These may include tests for specific antibodies (like anti-dsDNA, anti-Sm, anti-histone), complement levels, and other blood tests. You may also need imaging studies or referrals to a specialist such as a rheumatologist.
Can this test be used to monitor my condition?
Yes, the ANA test (including pattern identification) can be used to monitor disease activity in conditions like SLE. However, the test is not typically used as the sole measure of disease activity. Your doctor will look at multiple factors including your symptoms, other lab results, and your overall clinical picture to determine how your disease is progressing or responding to treatment.
Are there factors that can cause a false positive result?
Yes, several factors can cause a positive ANA test even without autoimmune disease. These include older age (prevalence increases with age), certain infections, liver disease, some medications, and other chronic conditions. That's why the test result must always be interpreted in clinical context.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 17, 2026. · Read our editorial policy