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Respiratory Viral Panel (Upper Respiratory Tract) – Probe

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

This test checks for the presence of viruses commonly found in the upper respiratory tract, such as those causing colds, flu, or other infections.

Quick summary

["A simple screening to help identify possible viral infections in your nose or throat."]

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

Key facts at a glance

LOINC
91795-5
Short code
RSV A RNA Upper resp Ql NAA+probe
Synonyms
RSV A RNA Upper 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

What This Test Measures

The test uses a probe to detect specific viral genetic material (RNA/DNA) from common respiratory viruses. It may include viruses like rhinovirus, coronavirus, influenza, respiratory syncytial virus (RSV), adenovirus, and others. Results are qualitative (positive/negative) rather than quantifying virus levels.

How the Test Works

A swab sample is collected from your nasal passages or throat. The sample is processed to identify viral genetic material through molecular techniques, such as polymerase chain reaction (PCR). This helps determine if a virus is present in your upper respiratory system.

When You Might Need This Test

Your healthcare provider may recommend this test if you have symptoms like cough, sore throat, runny nose, fever, or difficulty breathing, especially if you suspect a viral infection. It’s often used in settings like urgent care, clinics, or during outbreaks.

Preparation and Process

No special preparation is needed. You’ll likely be asked to blow your nose gently first, then a healthcare provider will collect a swab sample from your nose or throat. The sample is sent to a lab for analysis, and results are typically available within 1–3 days.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Upper Respiratory Virus Screen (Qualitative Probe)

Frequently asked questions

This test helps confirm a viral infection that may be causing your symptoms, guiding treatment decisions. While antibiotics won’t help with viruses, identifying the right virus can help manage symptoms, reduce spread, and rule out bacterial infections that might require different treatment.
This test is not a definitive diagnosis but a screening tool. False positives or negatives can occur, so results should be reviewed by a healthcare provider.
How long will I wait for results?
Results are usually available within 1–3 business days, depending on lab processing times. Your healthcare provider will discuss the results with you.
Can I have this test if I’m pregnant or have a weakened immune system?
Yes, this test is generally safe for pregnant individuals or those with weakened immune systems. However, always discuss your medical history with your healthcare provider before testing to ensure it’s appropriate for your situation.
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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