Cancer-Related DNA Detection in Blood Using a Specific Probe (Cancer Biomarker DNA Screening)
This test checks for tiny amounts of DNA that may come from cancer cells in your blood. It helps doctors look for signs of cancer or monitor treatment progress.
["A non-invasive way to detect potential cancer presence or track cancer treatment effectiveness."]
Key facts at a glance
- LOINC
- 92791-3
- Short code
- CAURISNAA
- Synonyms
- C auris DNA Bld Pos Ql NAA+probe
- Category
- chemistry
- Sample
- whole-blood
- Container
- Positive blood culture bottle (aerobic or anaerobic) identified as positive by continuous monitoring blood culture system
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- probe-amp-tar
- CPT
- 87798
- SNOMED
- 122451000
- Specimen volume
- 1-3 mL aliquot from positive blood culture bottle
- Stability
- Stable for 24 hours at 2-8°C; process as soon as possible after blood culture flags positive; do not freeze
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 1–8 hours
- Order
- routine
What This Test Measures
The test analyzes DNA fragments from your blood that could be linked to cancer. These fragments are collected using a specialized probe designed to detect cancer-related genetic material. This method is often used as a screening tool or in research settings to identify abnormal cells early.
How the Test Works
Blood is drawn and processed to extract DNA. The probe targets specific sequences associated with cancer, allowing for detection of abnormal DNA patterns that may indicate malignancy.
Why It Might Be Ordered
Your healthcare provider may recommend this test if you have a high risk of cancer, are undergoing cancer treatment, or if symptoms suggest possible cancer. It’s also used in research to study cancer biology.
What to Expect Before the Test
No special preparation is needed, but you may be asked to fast or avoid certain medications. Bring any relevant medical history or test results to your appointment.
Reference range
Not DetectedN/A
No special patient preparation required. Specimen should be collected prior to initiation of antifungal therapy when possible. Follow standard blood culture collection protocols with strict aseptic technique.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: This test is primarily used as a screening or monitoring tool rather than a definitive diagnostic method. While it can detect cancer-related DNA, it may not identify all types of cancer. Results should always be reviewed by a healthcare professional to interpret findings accurately and guide further testing if needed.
Short name
Cancer DNA Screening (blood)
Frequently asked questions
What does a positive result mean?
How often will I need this test?
Can this test detect all types of cancer?
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