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: Respiratory Syncytial Virus (RSV) RNA, Bronchial Specimen, Qualitative, Nucleic Acid Probe

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

: This test looks for the genetic material (RNA) of respiratory syncytial virus (RSV) in a sample taken from the bronchial airways, using a nucleic acid probe method. It helps show whether RSV is present in the lower respiratory tract.

Quick summary

[": A positive result means RSV RNA was detected in the bronchial sample, suggesting RSV infection in the lower airways."]

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

Key facts at a glance

LOINC
105213-3
Short code
RSV B RNA Bronch Ql NAA+probe
Synonyms
RSV B RNA Bronch 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

: What This Test Detects

: The test targets RNA from respiratory syncytial virus, a common virus that can infect the nose, throat, and lower airways. Because it uses a nucleic acid probe, it is designed to detect the virus's genetic material rather than antibodies the body makes against it.

: Why a Bronchial Sample Is Used

: A bronchial specimen is collected from the airways, typically during a procedure such as bronchoscopy. Testing this type of sample can help evaluate whether RSV is present deep in the lower respiratory tract, which may matter when upper-airway tests are unclear or when lower-airway disease is suspected.

: What Results Mean

: A detected (positive) result indicates that RSV RNA was found in the sample. A not-detected (negative) result means it was not found at the level the test can identify. Results are interpreted together with symptoms, imaging, and other tests; the test does not by itself measure how severe an infection is.

: Test Method and Limitations

: This is a qualitative nucleic acid probe test, so it reports presence or absence rather than a measured amount. As with any laboratory method, results depend on sample quality and collection technique, and a negative result does not always rule out infection.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

: RSV is a leading cause of lower respiratory illness, especially in young children, older adults, and people with weakened immune systems. Detecting RSV RNA in a bronchial specimen can support diagnosis when lower-airway infection is suspected, but the result should always be combined with clinical findings and other laboratory or imaging information.

Short name

: RSV RNA, Bronchial, Qualitative

Frequently asked questions

: Does a positive result mean I definitely have an RSV infection?
: A positive result means RSV RNA was detected in the bronchial sample, which strongly suggests RSV is present in the airways. Your healthcare provider will interpret this along with your symptoms and other test results.
: Can this test tell how much virus is present?
: No. This is a qualitative test that reports whether RSV RNA is detected or not detected. It is not designed to measure the quantity of virus.
: Is a bronchial sample required, or can a simpler sample be used?
: RSV can often be tested with nasal or throat swabs. A bronchial specimen is usually collected when lower-airway sampling is already being done for medical reasons, and the choice of sample is made by your healthcare provider.
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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