Genetic analysis of serum DNA using a probe for specific nucleotide sequences (qualitative)
This test checks for specific genetic variations in your blood using a DNA probe. It helps identify potential inherited conditions or mutations linked to certain diseases.
["This test helps doctors assess genetic risks or confirm suspected inherited disorders."]
Key facts at a glance
- LOINC
- 44879-5
- Short code
- S aureus Etx E gene Spec Ql NAA+probe
- Synonyms
- S aureus Etx E gene Spec 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 analyzes your serum DNA for specific sequences detected by a molecular probe. These sequences may correspond to known genetic markers or mutations associated with conditions like metabolic disorders, cancer predispositions, or other hereditary conditions. The probe binds to these sequences if present, allowing for qualitative detection.
Why It’s Done
Your healthcare provider may order this test if you have a family history of a genetic condition, symptoms suggestive of an inherited disorder, or if you’re at higher risk due to ethnicity or other factors. It can also be used in prenatal screening or genetic counseling.
Sample Collection and Preparation
A blood sample is drawn, and the serum (liquid part of blood after clotting) is separated for testing. The DNA is extracted from the serum and prepared for analysis using the probe-based method.
Turnaround Time and Results
Results may take several days to weeks, depending on laboratory capacity and complexity of the genetic analysis. You’ll receive a report detailing whether the probe detected the specific sequences of interest.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test can confirm or rule out inherited genetic conditions, guide treatment decisions, or inform preventive measures. For example, detecting a mutation linked to a metabolic disorder may allow for early intervention or dietary adjustments. Results should always be interpreted by a healthcare provider in the context of your medical history and symptoms.
Frequently asked questions
What does a positive result mean?
What if my test results are negative?
Can this test detect all genetic conditions?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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