Rapid tests are diagnostic tools designed to quickly detect the presence of a specific substance, such as a virus or bacteria, in a sample. These tests typically provide results within minutes, making them useful in various settings, including hospitals, clinics, and at home. They are often used for conditions like COVID-19, strep throat, and pregnancy. The main advantage of rapid tests is their speed, allowing for timely decision-making and treatment. However, they may not always be as accurate as more comprehensive laboratory tests. It's important to follow up with additional testing if results are unclear or if symptoms persist.