Free STD Testing in Evergreen Park, MD (Baltimore County)

A nucleic acid amplification test is a laboratory procedure that professionals often perform to make detecting a particular nucleic acid or gene being targeted easier and more convenient while still ensuring that the sample being collected is relatively minimal. Nucleic acid amplification tests, or NAATs, are usually the mainstay diagnostic test for most STDs due to their ability to detect the presence of pathogenic nucleic acids and genes in the patient sample with utmost accuracy and speed. NAATs depends on their ability to replicate the target RNA and DNA to create numerous copies – resulting in an increased convenience in the detection of the desired molecules instead of trying to either blindly look for one strand in a minuscule sample or collecting a large sample that could make the patient uncomfortable throughout the process. Although NAATs are often preferred for a more conclusive diagnosis of STDs, certain exceptions such as the availability of resources and instances of intermittent viral shedding could make NAATs less desirable than other tests. Fret not, however, as your physician is knowledgeable regarding these instances and would often request the best diagnostic procedure for your instances.

Similar to how other testing procedures behave, false-positive results are still evident even in STD testing. False-positive and even false-negative results are standard instances that showcase the imperfection of the test’s design – a factor that is present everywhere. However, despite certain inconsistencies in laboratory tests as such, physicians commonly use confirmatory tests that would often take another path entirely to arrive at the same conclusion – solidifying the initial test’s diagnosis while still ensuring that the second test is not following the inconsistencies of the first.

It would vary depending on the condition that is being tested. STDs behave differently due to the varying pathogenicity of each STD’s causative organism. In some instances, you can get accurately tested as early as two weeks following exposure, while some are intermittently inaccurate due to its recurrence (much like in the case of herpes infections). To avoid this, be sure to discuss the intricacies of the test with your physician to understand whether a particular test could provide you with a conclusive diagnosis or if it still needs another confirmatory test to establish its premise.

Similar to what was previously mentioned, herpes infections are known for their recurring tendencies – causing outbreaks now and then and thus causing an intermittent spike in the patient’s viral load for specific instances. In addition to that, other STDs also take time to proliferate and produce a sufficient viral load that could warrant a positive and, more importantly, accurate diagnosis and detection from the tests being administered. As such, detecting an STD a few days following exposure is often complex and unpredictable – leading physicians to follow a certain timeframe instead for testing STDs instead of blindly testing immediately following exposure. Physical exams, however, may supplement inaccurate laboratory diagnoses, especially in cases where the test is prone to false results.

Although NAATs are well-known for their accuracy and sensitivity in detecting most STDs, it is also subject to certain inconsistencies, especially in the case of herpes infections. In Herpes, outbreaks often result in a relative increase in the patient’s viral load – leading to a timeline that usually has specific peaks at certain intervals instead of a consistent rise in viral load throughout. As such, sensitive tests such as NAATs are still unable to accurately diagnose herpes conditions, especially in cases where the patient has recently become asymptomatic and is currently between outbreaks. Other tests such as culture testing and type-specific virologic tests are often employed instead as a confirmatory diagnosis for the patient’s condition.