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Serum or plasma concentration of a specific antibody subtype (e.g., IgG subclass) against a viral antigen (e.g., adenovirus)

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

This test measures the level of antibodies your body produces in response to adenovirus infection. It helps assess immune response or detect past exposure.

Quick summary

["This test helps track your immune reaction to adenovirus or check for past infection."]

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

Key facts at a glance

LOINC
23238-9
Short code
M avium av Sertyp Spec
Synonyms
M avium av Sertyp Spec
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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

Why This Test Might Be Ordered

Your healthcare provider may order this test if you have symptoms of adenovirus infection (e.g., fever, cough, or respiratory issues), if you’re recovering from an infection, or to monitor immune function in certain conditions like HIV or cancer.

What to Expect Before the Test

No special preparation is needed. A blood sample will be taken from a vein in your arm. If you’re on blood thinners, let your provider know before the test.

What the Test Results Mean

Higher levels of these antibodies suggest recent or past infection. Very low levels may indicate a weakened immune response. Your provider will interpret results in the context of your symptoms and medical history.

Common Reasons for Testing

This test is often used to diagnose adenovirus infections in children or immunocompromised individuals, evaluate immune responses to vaccines or infections, or monitor chronic conditions affecting immunity.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

IgG antibody to adenovirus

Frequently asked questions

What does a positive result mean?
A positive result indicates your body has detected adenovirus antigens and produced antibodies against them. This could mean you’ve had an infection recently or in the past, or your immune system is responding to vaccination.
How long does it take to get results?
Results are typically available within 1–3 business days, depending on lab processing times. Your provider will contact you once they’re ready.
Can I eat or drink before this test?
You can eat and drink normally before this test. No fasting is required, unlike some other blood tests.
  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