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Respiratory Viral Nucleic Acid Detection by Qualitative Probe (Respiratory Specimen)

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

This test checks for the presence of viruses in your respiratory secretions, such as those found in nasal or throat swabs, using a molecular probe method. It helps identify common viruses that may cause colds, flu, or other respiratory infections.

Quick summary

["Determines if a virus causing respiratory symptoms is present to guide treatment and isolation decisions."]

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

Key facts at a glance

LOINC
34707-0
Short code
C pneum rRNA Spec Ql Probe
Synonyms
C pneum rRNA Spec Ql 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
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

How the Test Works

The test uses a specialized probe to detect genetic material (nucleic acids) from viruses in your sample. If the virus is present, the probe binds to its genetic material, triggering a detectable signal. This method is highly sensitive and can identify viruses even when symptoms are mild.

What to Expect Before the Test

No special preparation is needed. You may have a nasal or throat swab collected during your visit. The sample is then processed in the lab to check for viral DNA or RNA.

What the Results Mean

A positive result means the virus is detected in your sample. This can confirm a respiratory infection and help guide treatment options, such as antiviral medications. A negative result means no virus was found in the sample at the time of testing.

Common Viruses Detected

This test can detect a wide range of viruses, including but not limited to: respiratory syncytial virus (RSV), rhinovirus, influenza virus (A and B), coronavirus (including SARS-CoV-2), adenovirus, and others. The specific viruses detected may vary depending on the testing panel used.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Viral Probe Test for Respiratory Illness

Frequently asked questions

Why might I need this test?
You may need this test if you have symptoms of a respiratory infection, such as cough, sore throat, fever, or shortness of breath. It is also commonly used in healthcare settings to screen for viruses in patients with suspected infections, especially during outbreaks or when rapid diagnosis is needed.
What are the limitations of this test?
While this test is highly sensitive, it may not detect all viruses, and results can sometimes be false negative if the virus is not present in the sample collected. Additionally, the test may not detect viruses that have been treated with antiviral medications.
How long does it take to get the results?
Results are typically available within 24 hours, depending on the laboratory’s processing schedule. Your healthcare provider will contact you with the results once they are ready.
  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