Fluoroquinolone Antibiotic Resistance Gene Detection (Nasal Swab Sequence)
This test checks for specific genetic markers in your nasal swab that may indicate resistance to fluoroquinolone antibiotics, a type of antibiotic used to treat bacterial infections.
["Helps determine if bacteria in your nose may not respond to certain antibiotics, guiding treatment choices."]
Key facts at a glance
- LOINC
- 72200-9
- Short code
- FLUAV NA seg sequence ID Islt Seq
- Synonyms
- FLUAV NA seg sequence ID Islt Seq
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- sequencing
- 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 from bacteria found in your nasal swab to identify genes that could make them resistant to fluoroquinolone antibiotics. This is done through a specialized DNA sequencing process, often used in clinical microbiology labs to assess antibiotic resistance patterns.
Why It Might Be Ordered
Your healthcare provider may order this test if you have a history of infections that don’t respond well to fluoroquinolones, or if you’re considering this type of antibiotic for treatment. It helps ensure the most effective treatment by identifying potential resistance upfront.
Sample Collection and Process
A sterile swab is inserted into your nasal passage to collect bacteria. The sample is then sent to a lab for DNA extraction and sequencing. Results are typically available within a few days, depending on lab processing times.
What the Results Mean
Positive results for fluoroquinolone resistance genes suggest that certain bacteria in your nasal area may not be effectively treated by fluoroquinolone antibiotics. Negative results indicate no such resistance markers were found.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Identifying antibiotic resistance helps healthcare providers tailor treatment plans to avoid ineffective antibiotics, reducing the risk of treatment failure and antibiotic resistance spread. This test is particularly useful in guiding empiric therapy for infections where fluoroquinolones are a consideration.
Short name
Nasal Swab Fluoroquinolone Resistance Test
Frequently asked questions
How long does it take to get results from this test?
What does a positive result mean for my health?
Can I use this test to avoid antibiotics altogether?
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