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RNA Sequencing – Serum/Plasma Probe Analysis (for Specific Pathogenic RNA Variants)

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

This test checks for specific types of RNA sequences in your blood that may indicate certain infections, genetic mutations, or other health conditions.

Quick summary

["Detects rare RNA sequences that could signal underlying health concerns."]

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

Key facts at a glance

LOINC
105231-5
Short code
RSV RNA Spt Ql NAA+probe
Synonyms
RSV RNA Spt Ql NAA+probe
Category
chemistry
Sample
sputum
Container
Sterile sputum container
Units
N/A
Ref low
0.8
Ref high
1.2
Critical range
— – 5 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
CPT
85610
SNOMED
396252006
Specimen volume
3-5 mL
Stability
Room temperature: 2h, Refrigerated: 24h
TAT
4–24 hours
Order
routine

What This Test Measures

This test uses a specialized probe to identify and quantify specific RNA sequences in your serum or plasma. It helps detect abnormal RNA patterns that may be linked to viral infections, genetic disorders, or other conditions affecting RNA expression.

How the Test Works

Blood is drawn and processed to isolate RNA fragments. A molecular probe targets and binds to particular RNA sequences, allowing precise detection and measurement of these variants.

When You Might Need This Test

Your healthcare provider may recommend this test if you have symptoms of an infection, genetic disorder, or if you’re at risk for conditions involving abnormal RNA (e.g., certain cancers, autoimmune diseases, or rare genetic syndromes).

Common Uses in Healthcare

This test is often used for diagnosing infections (e.g., certain viruses), confirming genetic mutations, or monitoring conditions where RNA expression changes (e.g., cancer progression or treatment response).

Reference range

INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A

Specimen: sputum

Inform your healthcare provider if you are taking blood thinners. No special preparation required.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

RNA Variant Screening

Frequently asked questions

Why might my doctor order this test?
Your doctor may order this test to investigate unexplained symptoms, confirm a suspected genetic or infectious condition, or assess how a treatment is affecting RNA-related health markers.
What does a positive result mean?
A positive result indicates the presence of specific RNA sequences that may correspond to an infection, genetic mutation, or other health issue. Results will be interpreted by a healthcare provider based on your clinical context.
How long will it take to get results?
Results are typically available within 1–2 weeks, depending on lab processing and testing complexity. Follow-up with your healthcare provider to discuss findings.
  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