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Microvolume RNA Sequencing Probe Assay for Viral RNA (e.g., SARS-CoV-2)

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

This test detects specific genetic material (RNA) from certain viruses, including those that cause respiratory infections like COVID-19, using a small sample of your respiratory secretion.

Quick summary

["Helps diagnose viral infections with high accuracy using minimal sample volume."]

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

Key facts at a glance

LOINC
53603-7
Short code
MuV RNA Ser Ql NAA+probe
Synonyms
MuV RNA Ser 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

How the Test Works

The test uses a specialized probe to identify unique RNA sequences from viruses in your sample. This process is highly sensitive and can detect even small amounts of viral genetic material, helping confirm or rule out certain infections.

Sample Collection

A small sample of your respiratory secretion (such as nasal swab or throat swab) is collected. This sample is processed to extract viral RNA, which is then analyzed by the probe assay.

What to Expect Before the Test

No special preparation is needed. You may feel mild discomfort during sample collection, but it typically takes a few minutes. If you have a respiratory infection, symptoms like coughing or sore throat may still be present.

Common Uses

This test is primarily used to diagnose viral infections, including respiratory viruses like SARS-CoV-2 (the virus responsible for COVID-19). It can also be used for other viruses depending on the probe designed for the test.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Viral RNA Probe Test

Frequently asked questions

Why was I asked to take this test?
Your healthcare provider may recommend this test if you have symptoms of a viral infection, such as fever, cough, or shortness of breath, or if you have been exposed to a virus that this test can detect.
How long does it take to get results?
Results are typically available within a few hours to a couple of days, depending on the laboratory’s processing time and your healthcare provider’s request for follow-up.
Can I take this test at home?
No, this test requires a sample collected by a healthcare professional. Some providers may offer at-home collection kits, but results are usually processed in a lab.
  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