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•	Strep throat

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Streptococcal screen

Definition

A streptococcal screen is a test to detect group A streptococcus, the most common cause of strep throat.

Alternative Names

How the Test is Performed

The test requires a throat swab. It takes about 7 minutes. The swab is tested to identify group A streptococcus.

How to Prepare for the Test

There is no special preparation. Inform the health care provider if you are taking, or have recently taken, antibiotics.

How the Test Will Feel

Your throat will be swabbed in the area of the tonsils. This may make you gag.

Why the Test is Performed

The test is performed when the doctor suspects strep throat or if you have symptoms of pharyngitis (sore throat).

Normal Results

Group A streptococcus is not present.

What Abnormal Results Mean

Group A streptococcus is present (confirms strep throat).

Risks

There are no risks.

Considerations

This test screens for the group A streptococcus organism only and will not detect other causes of sore throat.

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