STD tests are a reliable and preferred method for screening for chlamydia and gonorrhea, but there are certain situations that can lead to inaccurate results. False positives and false negatives are both possible, and the accuracy of the test may depend on the type of sample taken and the manufacturer of the test. It is also important to note that no STI test is accurate immediately after having sex, as it takes time for the bacteria or virus to reach a detectable state or for the body to have an immune response. If you receive a positive result from a home test for an STI, it is important to contact your healthcare provider or a public health clinic to confirm the results.
Similarly, if your home test results are negative but you have symptoms, it is still recommended to contact your provider or a public health clinic to confirm the results. This is especially true if the initial test was performed during the first 12 weeks after possible exposure, as it is suggested to repeat the test after an additional 12 weeks for more reliable results. When it comes to accuracy of STD tests, it is important to understand that different types of tests work in slightly different ways. For example, urine or swab tests (NAAT) are very sensitive and specific for the detection of trichomonads, so it is suggested to test trichomonads at the same time as gonorrhea and chlamydia (2 weeks after possible exposure).
The accuracy of an STD test is usually shown as “Accuracy from the period” on your sexual health STI tests. Generally speaking, these tests offer a high degree of accuracy if done correctly. However, if a person has been tested for chlamydia and the result is negative but then it turns out that they have chlamydia, this would be considered a “false negative”. It is important to remember that different types of STD tests may be necessary depending on your risk factors.
If you have any questions or concerns about STD testing accuracy, it is best to speak with your healthcare provider or a public health clinic.