Epidermal keratinocyte DNA (fluid) – quantitative probe
This test measures the amount of DNA derived from skin cells found in your body fluids, such as blood or urine. It may be used to detect certain genetic or cellular changes.
["This test helps assess skin-related conditions or genetic markers in body fluids."]
Key facts at a glance
- LOINC
- 106602-6
- Short code
- S epidermidis DNA Fld Ql NAA+n-prb
- Synonyms
- S epidermidis DNA Fld Ql NAA+n-prb
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- non-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 Is This Test Measuring?
The test focuses on DNA fragments originating from epidermal keratinocytes (skin cells). These DNA fragments can be present in fluids like blood plasma or urine, depending on the sample collected. The measurement helps identify specific genetic material that may relate to skin health or disease processes.
Why Might Your Doctor Order This Test?
Your doctor may recommend this test to screen for genetic mutations, monitor skin conditions, or investigate abnormal cell shedding. It could also be part of a broader evaluation for hereditary disorders or cancer research.
Sample Collection and Preparation
The test typically uses a fluid sample, such as plasma (from blood) or urine. Your healthcare provider will explain the process and ensure proper handling to preserve DNA integrity for accurate results.
What Does a Result Mean?
Results are qualitative (present/absent) or quantitative, depending on the probe used. Elevated or altered DNA levels may indicate abnormal cell activity, genetic predispositions, or conditions affecting skin or systemic health. Interpretation depends on clinical context and comparison with known reference ranges or research standards.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test may play a role in detecting early genetic markers for skin cancers, hereditary disorders, or inflammatory conditions. It could also support research into cellular turnover, genetic mutations, or biomarkers for monitoring chronic skin diseases. However, it is not a standard diagnostic tool for most conditions and is often used in specialized or investigational settings.
Short name
DNA from skin cells in body fluids (screening)
Frequently asked questions
What are the possible causes for abnormal results?
How often is this test repeated, and when would follow-up be needed?
Are there any risks or side effects associated with this test?
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