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: Trichomonas vaginalis DNA, Urine, Qualitative, Nucleic Acid Probe

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

: This test looks for the genetic material (DNA) of Trichomonas vaginalis, a common parasite that causes a sexually transmitted infection, in a urine sample.

Quick summary

[": A positive result means the parasite's DNA was detected, suggesting an active Trichomonas infection."]

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

Key facts at a glance

LOINC
100700-4
Short code
T vaginalis DNA Urth Ql NAA+probe
Synonyms
T vaginalis DNA Urth 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 This Test Measures

: The test detects DNA from Trichomonas vaginalis, a tiny single-celled parasite. Finding this DNA in urine indicates that the organism is present in the genital or urinary tract.

: Why the Test Is Done

: Your clinician may order this test if you have symptoms such as itching, burning, or unusual discharge, or as part of routine screening for sexually transmitted infections. It can also be used to check whether treatment worked.

: How the Sample Is Collected

: You provide a urine sample, typically a "first-catch" sample collected at the start of urination. The sample is then processed in the laboratory to look for the parasite's DNA.

: What the Results Mean

: A "detected" or positive result means Trichomonas DNA was found, which usually indicates an active infection that can be treated with prescription medication. A "not detected" or negative result means the DNA was not found, though very recent infection or improper sample collection could occasionally affect results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

: Trichomonas vaginalis is one of the most common sexually transmitted infections. Detecting it is important because infection can cause uncomfortable symptoms and is linked to increased risk of other STIs and pregnancy complications. Identifying the infection allows for effective treatment and helps prevent spreading it to partners.

Short name

: T. vaginalis DNA, Urine

Frequently asked questions

: Is this test the same as a Pap smear?
: No. A Pap smear screens for cervical changes, while this test specifically looks for Trichomonas DNA. They are different tests, though a clinician may order both.
: Can I have this infection without symptoms?
: Yes. Many people with Trichomonas have no symptoms but can still pass the infection to partners, which is why screening may be recommended.
: Does a positive result mean my partner needs treatment?
: Often yes. Trichomonas is sexually transmitted, so clinicians commonly recommend that sexual partners be evaluated and treated to prevent reinfection.
  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