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Salivary DNA (Qualitative) Probe Test

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

This test checks for the presence of specific genetic material (DNA) in your saliva using a molecular probe. It may help detect certain genetic conditions or mutations.

Quick summary

["A simple saliva test to assess genetic material for potential hereditary conditions."]

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

Key facts at a glance

LOINC
105682-9
Short code
S. salivarius DNA Spec Ql NAA+probe
Synonyms
S. salivarius DNA Spec Ql NAA+probe
Category
coagulation
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 analyzes DNA extracted from your saliva sample. A specialized probe binds to specific DNA sequences, allowing detection of particular genetic markers or mutations. This method is often used for genetic screening or research purposes.

How the Test Works

Saliva is collected, and the DNA is isolated. A fluorescent or colorimetric probe targets specific DNA sequences. If the probe binds to the expected genetic material, it triggers a detectable signal (e.g., fluorescence or color change).

Why It Might Be Ordered

This test could be recommended if you have a family history of genetic disorders, are part of a research study, or if genetic counseling suggests a need for saliva-based genetic testing.

Sample Collection and Preparation

You’ll provide a saliva sample, often collected by swabbing your inner cheek. The sample is processed in the lab to isolate DNA, which is then tested with the probe. No fasting or special preparation is needed.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Salivary DNA testing can identify genetic mutations associated with inherited conditions, such as certain cancers, metabolic disorders, or neurological diseases. It may also be used in prenatal screening or carrier testing for recessive genetic traits. Results help guide personalized medical advice or treatment planning.

Short name

Salivary DNA Probe

Frequently asked questions

Why might my doctor order this test?
Your doctor may suggest this test if you have a family history of genetic disorders, are undergoing genetic counseling, or if research studies require saliva-based genetic analysis.
How long will it take to get results?
Results are typically available within 1–2 weeks, depending on lab processing times and any follow-up testing required.
What does a positive result mean?
A positive result indicates the presence of the targeted genetic material, which may confirm a suspected genetic condition or mutation. Your healthcare provider will interpret results in the context of your medical history and family health.
  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