Genomic DNA from whole blood (qualitative probe-based assay for specific nucleotide sequences)
This test checks for the presence of specific genetic material (DNA) in your blood using a probe to detect certain sequences. It may be used to screen for inherited conditions or genetic variations.
["This test helps identify genetic information that may influence health risks or conditions."]
Key facts at a glance
- LOINC
- 29604-6
- Short code
- CMV DNA # Bld NAA+probe
- Synonyms
- CMV DNA # Bld NAA+probe
- Category
- chemistry
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- probe-amp-tar
- Specimen volume
- 3 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
What This Test Measures
The test analyzes DNA extracted from your blood sample. A specialized probe binds to specific DNA sequences, allowing detection of particular genetic markers. This is often used in research or targeted genetic screening.
Why It Might Be Ordered
Your healthcare provider may recommend this test if you have a family history of genetic disorders, are considering genetic counseling, or if symptoms suggest a potential genetic condition.
Sample Preparation
You’ll provide a blood sample, typically drawn from a vein. The DNA is isolated from the blood cells and prepared for analysis. No special preparation is needed beyond standard blood draw guidelines.
Turnaround Time
Results may take several days to a couple of weeks, depending on laboratory workload and complexity of the genetic probe analysis.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
This test can help confirm or rule out inherited genetic conditions, assess genetic predispositions to diseases, or guide personalized medical or preventive care plans. It’s particularly useful in research settings or for conditions with known genetic links.
Results processing can vary widely. Your healthcare provider will discuss the expected timeline with you during your appointment. Some tests may be reported as positive, negative, or inconclusive based on the genetic probe’s findings.
A positive result indicates the presence of the specific genetic sequences detected by the probe. This may suggest an increased risk for certain conditions or confirm a genetic diagnosis. Your doctor will interpret results in the context of your medical history and symptoms.
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