Chlamydia trachomatis (NG) nucleic acid test by quantitative PCR (urine specimen)

Why This Test Is Used

Doctors may order this test if you have symptoms like unusual discharge, pain during urination, or lower abdominal pain, especially if you’re sexually active. It’s also used as a screening test for STIs in certain high-risk groups, such as people with multiple sexual partners or those with other STIs. Some healthcare providers recommend routine testing for sexually active individuals under 25 or those with a history of STIs.

How the Test Works

The test analyzes urine samples for genetic material (DNA) from *Chlamydia trachomatis* using a highly sensitive PCR (polymerase chain reaction) method. PCR amplifies tiny amounts of DNA to detect the presence of the infection, even if symptoms aren’t yet obvious.

Sample Collection

You’ll collect a mid-stream urine sample in a sterile container provided by your healthcare provider. The sample is then sent to a lab for testing. No special preparation is needed, but avoid urinating right before the test if possible.

Test Results Interpretation

Results are typically available within 1–3 business days. A positive result means the test detected *Chlamydia* DNA, indicating an active infection that requires treatment. A negative result means the infection was not detected in this sample, but reinfection can happen, so follow-up testing may be recommended.