Respiratory Syncytial Virus (RSV) Antibody Probe (Serum/Plasma)
This test checks for antibodies to the respiratory syncytial virus (RSV), a common virus that can cause respiratory infections in infants, children, and older adults. Antibodies indicate past infection or immunity.
["Assesses RSV immunity or prior exposure through antibody detection."]
Key facts at a glance
- LOINC
- 91133-9
- Short code
- RSV RNA Lower resp Ql NAA+probe
- Synonyms
- RSV RNA Lower resp Ql NAA+probe
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- probe-amp-tar
- 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 recommend this test if you have symptoms like cough, fever, or difficulty breathing, especially if you’re at higher risk for severe RSV infection. It could also be used to evaluate immunity in newborns, high-risk infants, or individuals with chronic health conditions like asthma or heart disease.
What to Expect Before the Test
No special preparation is needed. A blood sample will be drawn from a vein in your arm. The test uses a small amount of serum or plasma from your blood. The results are typically reviewed by your provider to guide further care.
How the Test Works
The test uses a probe to detect specific antibodies against RSV in your blood. These antibodies are produced by your immune system in response to past infection or vaccination. The method may involve immunoassay techniques to measure antibody levels.
What the Results Mean
Positive results suggest you have antibodies to RSV, indicating past infection or immunity. Negative results mean no detectable antibodies, which may indicate no prior exposure or immunity. Your provider will interpret results in the context of your symptoms and medical history.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test helps determine if someone has immunity to RSV, which is crucial for high-risk groups like premature infants, those with weakened immune systems, or individuals with chronic lung or heart conditions. It can also guide decisions about vaccination or preventive measures.
Short name
RSV Antibody Screening Test
Frequently asked questions
What does a positive result mean?
Can this test be used to diagnose active RSV infection?
Is this test covered by insurance?
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