Micro Lab Tests Flashcards
1
Q
What does a catalase test confirm?
A
Staph vs Strep. Run catalase on Gram + cocci.
2
Q
What is the indication of a + catalase test?
A
Immediate bubbling upon adding bacteria to H2O2. Staph are catalase +
3
Q
What bacterium is B-hemolytic, and Sensitive to a Taxo A disc? (Bacitracin?)
A
Strep Pyogenes
4
Q
Which test provides confirmation of Staph Aureus? what bacteria is it if the test is negative?
A
Coagulase test. Run it on an already coagulase + staph to differentiate it from other staph strains.
If the coagulase test is (-), it is Staph epi.
