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- What is the test?
- How do I prepare for the test?
- What happens when the test is performed?
- What risks are there from the test?
- Must I do anything special after the test is over?
- How long is it before the result of the test is known?
What is the test?
A throat infection with streptococcus bacteria (called strep throat) needs to be treated with an antibiotic. A test is commonly used to find out whether streptococcus bacteria are present on your throat surface. The traditional test for a strep throat has been a throat culture, which takes two to three days to produce results. Several different types of rapid strep tests, however, can produce results within minutes to hours. A rapid strep test can only detect the presence of Group A strep, the one most likely to cause serious throat infections; it does not detect other kinds of strep or other bacteria.
How do I prepare for the test?
No preparation is necessary.
What happens when the test is performed?
A cotton swab is rubbed against the back of your throat to gather a sample of mucus. This takes only a second or two and makes some people feel a brief gagging or choking sensation. The mucus sample is then tested for a protein that comes from the strep bacteria.
What risks are there from the test?
There are no risks.
Must I do anything special after the test is over?
No.
How long is it before the result of the test is known?
Results may be available in minutes to a few hours. Often the doctor will ask you to wait in the office until the result is back.
