SARS-CoV-2 Nucleic Acid Gene Expression Test (Qualitative) – Respiratory Specimen Probe

Why This Test Is Done

Your healthcare provider may order this test to diagnose an active COVID-19 infection, especially if you have symptoms like fever, cough, or shortness of breath. It’s also used to monitor recovery or guide treatment decisions in certain settings, such as healthcare facilities or high-risk populations.

How the Test Works

The test uses a molecular method (reverse transcription polymerase chain reaction, or RT-PCR) to identify specific genetic sequences unique to the SARS-CoV-2 virus. A sample from your respiratory tract (e.g., nasal or throat swab) is collected and analyzed in a lab.

Sample Collection and Preparation

A healthcare professional will take a swab from your nose or throat. The swab collects cells and fluids containing viral material, which is then processed in the lab for testing. The sample is typically sent to a lab where it is analyzed within hours.

Test Results and Interpretation

Results are reported as either **positive** (indicating the presence of the virus) or **negative** (no detectable virus). A positive result means you may have an active infection and should follow isolation guidelines. A negative result means the virus was not found in this sample, but other factors (like timing of testing) could affect results.