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Respiratory Syncytial Virus (RSV) Nucleic Acid Detection by Probe-Based Assay

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

This test checks for the presence of respiratory syncytial virus (RSV) genetic material in your respiratory secretions. RSV is a common virus that can cause respiratory infections in people of all ages.

Quick summary

A simple test to detect RSV, often used to diagnose infections in infants, children, and adults.

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

Key facts at a glance

LOINC
106214-0
Short code
RSV B RNA BAL Ql NAA+probe
Synonyms
RSV B RNA BAL 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 or your child have symptoms like coughing, wheezing, or difficulty breathing, especially if you’ve been exposed to RSV. It’s also used in certain settings like hospitals or clinics to monitor high-risk groups, such as newborns, young children, or individuals with weakened immune systems.

What to Expect Before the Test

You may need to provide a nasal or throat swab sample. This is a quick, painless procedure, often done while you sit comfortably. No special preparation is required, but follow any instructions your provider gives you.

What the Test Results Mean

If RSV is detected, it confirms an infection. The test doesn’t measure how severe the infection is or how long it will last. Results are typically available within a few hours or the same day.

Common Uses and Who Might Need It

This test is commonly used in pediatric settings to diagnose RSV infections in infants and young children. It may also be used in adults, especially those with underlying health conditions that increase their risk of severe RSV symptoms.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

RSV is a leading cause of respiratory illness, particularly in infants and older adults. Early detection can help guide treatment decisions, such as monitoring symptoms closely or initiating supportive care. It’s especially important for high-risk groups to prevent complications.

Short name

RSV Probe Test

Frequently asked questions

What does a positive test result mean?
A positive result means the test detected RSV genetic material in your sample, indicating an active RSV infection. This doesn’t necessarily mean you’ll get sick, but it confirms you may have been exposed and could be contagious.
How long does it take to get results?
Results are usually available within a few hours to the same day, depending on the lab’s processing time. Your healthcare provider will contact you with the results once they’re ready.
Can I get this test at home?
No, this test is typically performed in a clinical setting, such as a doctor’s office, hospital, or specialized lab. You’ll need to provide a sample via a nasal or throat swab.
  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