Genital tract *Chlamydia trachomatis* nucleic acid detection (qualitative probe)
This test checks for the presence of *Chlamydia trachomatis*, a common bacterial infection that can affect the genitals, throat, or eyes. It uses a genetic probe to detect the infection in a sample taken from your genital area.
["Early detection helps prevent complications like pelvic inflammatory disease or infertility."]
Key facts at a glance
- LOINC
- 6356-0
- Short code
- C trach DNA Genital Ql NAA+probe
- Synonyms
- C trach DNA Genital 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
Why This Test Is Done
Your healthcare provider may recommend this test if you have symptoms like unusual discharge, pain during urination, or lower abdominal pain. It’s also part of routine screening for sexually active individuals, especially those with multiple partners or recent exposure to sexually transmitted infections.
How the Test Works
A small sample is collected from your genital area (e.g., cervix, urethra, or rectum) using a sterile swab. The sample is then tested in a lab to identify genetic material from *Chlamydia trachomatis* using a polymerase chain reaction (PCR) probe. This method is highly sensitive and accurate for detecting the infection.
What to Expect Before the Test
No special preparation is needed. You may shower or clean your genital area the day before, but avoid using vaginal creams, douches, or spermicides, as they could affect results. If you’re pregnant, inform your provider before the test.
What to Expect During the Test
The test is quick and usually done in a doctor’s office or clinic. You’ll lie down while a healthcare provider collects the sample. Most people experience minimal discomfort, though some may feel slight irritation or mild cramping.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Untreated *Chlamydia trachomatis* can lead to serious health issues, including pelvic inflammatory disease (PID), chronic pelvic pain, infertility, or ectopic pregnancy in women. In men, it can cause epididymitis, urethritis, or reduced fertility. Early treatment with antibiotics can prevent these complications and protect sexual partners.
Short name
Chlamydia trachomatis PCR (Genital)
Frequently asked questions
How long does it take to get results?
What if I get a positive result?
Can I have sex while waiting for results?
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