What laboratory test is commonly used to diagnose streptococcal pharyngitis?

Practice Questions

Q1
What laboratory test is commonly used to diagnose streptococcal pharyngitis?
  1. Blood culture
  2. Rapid antigen test
  3. PCR test
  4. Urinalysis

Questions & Step-by-Step Solutions

What laboratory test is commonly used to diagnose streptococcal pharyngitis?
  • Step 1: Understand that streptococcal pharyngitis is an infection in the throat caused by bacteria called Group A Streptococcus.
  • Step 2: Know that doctors need a way to quickly find out if someone has this infection.
  • Step 3: Learn that a rapid antigen test is a laboratory test used for this purpose.
  • Step 4: Realize that the rapid antigen test works by detecting the presence of Group A Streptococcus in a throat swab sample.
  • Step 5: Understand that this test gives results quickly, usually within a few minutes.
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