While working as a medical microbiologist in a hosptial, you are given a blood s
ID: 137265 • Letter: W
Question
While working as a medical microbiologist in a hosptial, you are given a blood sample for analysis from a patient suspected of bacteremia. You find the presence of Gram-positive cocci in the blood sample. Further investigation reveals the bacteria to be catalase-positive and coagulase-positive. This indicates that the bacteremia is likley due to
Streptococcus pyogenes.
Staphylococcus aureus.
Staphylococcus epidermidis.
Listeria monocytogenes.
Enterococcus faecalis.
Streptococcus pyogenes.
Staphylococcus aureus.
Staphylococcus epidermidis.
Listeria monocytogenes.
Enterococcus faecalis.
Explanation / Answer
Staphylococcus aureus is gram positive catalase and coagulase positive bacteria
S. aureus is catalase positive it can produce the enzyme catalase, Catalase convert H2O2 to water and oxygen.
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