Chlamydia trachomatis nucleic acid detection (serum/plasma)
This test checks for genetic material from *Chlamydia trachomatis*, a common bacterial infection that can affect the genitals, throat, or eyes. It helps diagnose infections that may not cause obvious symptoms.
["Detects *Chlamydia* infection in blood or body fluids using genetic testing."]
Key facts at a glance
- LOINC
- 35713-7
- Short code
- Chlamydia DNA Cvx Ql NAA+probe
- Synonyms
- Chlamydia DNA Cvx 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
- CPT
- 87110
- 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 if you’ve been exposed to *Chlamydia*. It’s also used in screening for sexually transmitted infections (STIs) in high-risk groups.
What to Expect Before the Test
No special preparation is needed. You’ll provide a blood sample (serum or plasma) via venipuncture or, in some cases, a swab from a body fluid. Results are typically available within 2–5 business days.
What the Test Results Mean
A positive result confirms the presence of *Chlamydia* genetic material. A negative result means no detectable infection at the time of testing, but reinfection is possible. Follow-up testing may be advised if symptoms persist.
Common Causes of False Results
False negatives can occur if the test is taken too early after exposure or if the sample isn’t collected correctly. False positives are rare but may happen if contamination or prior treatment affects results.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
Chlamydia DNA Test (Serum/Plasma)
Frequently asked questions
Untreated *Chlamydia* can lead to complications like pelvic inflammatory disease (PID), infertility, or chronic pelvic pain. Early detection and treatment with antibiotics prevent serious health risks.
The test uses a molecular probe to detect genetic material from *Chlamydia trachomatis* in your blood or plasma. It’s highly sensitive and specific for this pathogen.
No, this test does not screen for other STIs like gonorrhea or HIV. If you suspect multiple infections, your provider may recommend additional tests.
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