Lab - Common Microorganisms

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7 Terms

1
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What does a + coagulase test indicate?

  • microorg = staphylococcus aureus

2
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What does - coagulase test indicate?

microorg = a staphylococcus species that is not S. aureus (e.g. could be staphylococcus epidermidis)

3
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What is a catalase test used to differentiate?

  • difference between staphylococcus and streptococcus species

4
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What does + catalase test indicate?

microorg = species of staphylococcus

5
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What does - catalase test indicate?

microorg = strep species (e.g. streptococcus pyogenes)

6
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What does a positive oxidase test indicate?

  • microorg = P. aeruginosa

7
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What does a negative oxidase test indicate?

microorg = Escherichia coli