Serum or plasma concentration of a viral antigen (e.g., adenovirus)
This test measures the presence of specific proteins (antigens) from a virus in your blood, serum, or plasma. It helps detect infections caused by viruses like adenovirus.
["Detects viral infections by identifying unique viral proteins in your blood."]
Key facts at a glance
- LOINC
- 105885-8
- Short code
- CGVDNA
- Synonyms
- C glabrata DNA Vag Ql
- Category
- chemistry
- Sample
- serum
- Container
- Viral transport medium (VTM) or sterile specimen container for molecular testing
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- female
- Age range
- 12–99 years
- Method
- Nucleic Acid Amplification Test (NAAT), Polymerase Chain Reaction (PCR)
- CPT
- 87481
- SNOMED
- 441829007
- Specimen volume
- 1-3 mL of vaginal fluid in appropriate transport medium
- Stability
- Room temperature: 24 hours; Refrigerated (2-8°C): 7 days; Frozen (-70°C or below): 30 days
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 24–72 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may recommend this test if you have symptoms like fever, sore throat, fatigue, or other signs of infection. It could also be used to monitor viral exposure in certain settings, such as healthcare or research environments. Some adenovirus infections can cause severe illness, especially in children, the elderly, or people with weakened immune systems.
How the Test Works
The test uses an immunoassay method to detect viral antigens. A small sample of your blood, serum, or plasma is analyzed to identify specific proteins that belong to the virus. If these proteins are present, the test can confirm a viral infection.
Sample Collection and Preparation
A blood sample is typically drawn from a vein in your arm. The blood is then processed to separate the serum or plasma, which is the liquid part containing the viral antigens. This sample is sent to a lab for testing.
Interpreting Your Results
Results are usually reported as positive or negative. A positive result means the virus’s antigens were found in your sample. A negative result indicates no detectable antigens at the time of testing. Follow-up testing or additional samples may be needed if symptoms persist or if further evaluation is required.
Reference range
Negative (Candida glabrata DNA not detected)N/A
Patient should avoid vaginal douching, sexual intercourse, and use of vaginal medications or spermicidal creams for at least 24-48 hours prior to specimen collection. Patient should not be menstruating at the time of collection if possible.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Viral Antigen Test
Frequently asked questions
What Does This Test Tell You About My Health?
How Soon Can I Expect Results?
What If My Results Are Positive?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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