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Streptococcal screen - Overview

Alternative Names

Rapid strep test

Definition of Streptococcal screen:

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

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).

Throat anatomy

Throat swabs

Reviewed last on: 9/3/2008
D. Scott Smith, M.D., MSc, DTM&H, Chief of Infectious Disease & Geographic Medicine, Kaiser Redwood City, CA & Adjunct Assistant Professor, Stanford University. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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