Rapid strep test means: The rapid strep test is a diagnostic tool that detects if streptococcus bacteria strains are present in your throat. An antibiotic is required to treat a throat infection caused by strep.
(in Medical Dictionary)

What else does Rapid strep test mean?

It is faster to perform a rapid strep test. The rapid strep test can provide results in minutes or hours. To collect a sample, a cotton swab should be rubbed on the back of your throat. It takes between 1 and 2 seconds. Some people may feel an immediate gagging sensation or choking sensation. A sample of mucus is taken and tested to determine if it contains strep bacteria protein.
(in Medical Dictionary)

A throat culture is the traditional method of testing for strep. However, the main drawback to this test is the time it takes to get the results.
(in Medical Dictionary)

You can choose from several types of rapid stool tests. These tests can detect only “Group A” strains of strep. This is the most dangerous type that could cause severe throat infections. They cannot detect any other types of strep and other bacteria.
(in Medical Dictionary)