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Chlamydia trachomatis and Trichomonas vaginalis DNA Panel

Published: August 9, 2026Updated: August 16, 2026

Detects DNA from Chlamydia trachomatis, a bacterial infection, and Trichomonas vaginalis, a parasite, in a patient specimen.

Quick summary

["This panel checks for the DNA of two sexually transmitted infections that may cause similar symptoms."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
24545-6
Short code
CT TA W contr IV
Synonyms
CT TA W contr IV
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ct
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?

This test looks for genetic material from Chlamydia trachomatis and Trichomonas vaginalis. Chlamydia is a bacterium, while Trichomonas is a single-cell parasite. Both can be found in the genital tract and may cause discharge, irritation, or discomfort.

Why might I need this test?

Your clinician may order this panel to evaluate symptoms of a sexually transmitted infection or as part of routine screening. Testing can be especially helpful when symptoms are mild, absent, or similar to those caused by another condition.

How is the test performed?

A clinician collects a specimen from the area specified in your test order, such as a urine or genital sample. The laboratory analyzes the specimen for DNA from Chlamydia trachomatis and Trichomonas vaginalis.

How do I prepare for the test?

Follow the collection instructions provided by your clinic. Fasting is generally not required, but avoiding urination or vaginal cleansing for a short period before collection may be recommended for certain specimen types.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

A positive Chlamydia result indicates that DNA from the bacterium is present, which may represent an active infection. A positive Trichomonas result indicates that the parasite is present. Detection of either organism may warrant treatment and evaluation of sexual partners, as recommended by your clinician.

Short name

Chlamydia and Trichomonas DNA panel

Frequently asked questions

Can chlamydia and trichomoniasis have the same symptoms?
Yes. Both can cause vaginal discharge, irritation, itching, or pain when urinating, and some people have no symptoms. A DNA panel can help distinguish them from other causes.
Does a positive result always mean I have symptoms?
No. Chlamydia or Trichomonas may be present even when symptoms are mild or absent. A positive result should be discussed with your clinician, who can determine whether treatment is needed.
Should my sexual partners also be tested?
Your clinician may recommend testing and treatment for sexual partners if either infection is detected. This helps prevent reinfection and further spread.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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