Cystic Fibrosis Carrier Screening – Prenatal or Preconception DNA Probe Test (qualitative)
This test checks if you carry a mutated gene that could lead to cystic fibrosis, a genetic condition affecting lungs and digestive systems. It’s often done before pregnancy or during prenatal care.
["This test helps determine if you’re a carrier of cystic fibrosis mutations, supporting family planning decisions."]
Key facts at a glance
- LOINC
- 92133-8
- Short code
- C pneum DNA Resp Ql NAA+probe
- Synonyms
- C pneum DNA Resp 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 Does This Test Measure?
The test analyzes DNA from a blood sample to detect specific mutations linked to cystic fibrosis. It’s not a diagnostic test for cystic fibrosis itself but identifies whether you may pass these mutations to your children.
Why Might You Need This Test?
You may be recommended for this test if you have a family history of cystic fibrosis, are considering pregnancy, or are part of a prenatal screening program. It helps couples understand their risk of having a child with cystic fibrosis.
How Is the Test Performed?
A small blood sample is taken, usually from your arm. The DNA in your blood is extracted and analyzed for cystic fibrosis-related gene mutations using a specialized DNA probe technique.
What Are the Results?
Results are qualitative and indicate whether you carry one or both cystic fibrosis-associated gene mutations. You’ll receive a report showing your carrier status, which may include recommendations for genetic counseling.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Cystic fibrosis is a hereditary condition caused by mutations in the CFTR gene. Carrying one mutation increases your risk of passing it to your children. Knowing your carrier status can help you and your partner make informed decisions about family planning, genetic counseling, and potential prenatal testing options.
Short name
Cystic Fibrosis Carrier Screening Probe
Frequently asked questions
What does a positive result mean?
How accurate is this test?
Can I have this test if I’m already pregnant?
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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy