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DNA Antibody Screening (Serum/Plasma)

Published: August 9, 2026Updated: August 16, 2026

This test checks for the presence of antibodies that may react with DNA, sometimes linked to autoimmune conditions or other systemic issues.

Quick summary

["This screening helps identify potential immune system responses that could require further evaluation."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
54910-5
Short code
dsDNA Ab Ser IF-aCnc
Synonyms
dsDNA Ab Ser IF-aCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
if
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 This Test Measures

The test detects specific antibodies in your blood that can bind to DNA fragments. These antibodies may be part of an autoimmune response or a reaction to certain medications or infections. The method used may involve immunoassay techniques to identify these substances.

Why It Might Be Ordered

Symptoms such as persistent fatigue, joint or muscle pain, or unexplained rashes might prompt this screening, especially if other tests have not identified a cause.

What to Expect Before the Test

No special preparation is usually needed. You may be asked to fast for 8–12 hours before the test if it involves drawing blood, but this is not always required for antibody screening.

What to Expect During the Test

The blood sample is sent to a lab where it is analyzed using an immunoassay method to detect DNA-reactive antibodies. Results are usually available within a few days.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

DNA Antibody Screen

Frequently asked questions

What Does a Positive or Negative Result Mean?
A positive result suggests the presence of DNA antibodies, which could signal an autoimmune response or another underlying issue. However, it does not definitively diagnose a condition. Follow-up testing and evaluation by your doctor are essential to determine the next steps.
Can This Test Be Used to Diagnose Autoimmune Diseases?
No, this test alone cannot diagnose autoimmune diseases. It is typically used as a screening tool. If your doctor suspects an autoimmune condition, they may order additional tests for a more accurate diagnosis.
How Often Should I Get This Test?
The frequency of this test depends on your symptoms, medical history, and ongoing health needs. Your healthcare provider will determine if and when to repeat it based on your individual situation.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

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 16, 2026. · Read our editorial policy