Microbiology Quiz #10: Alpha hemolytic bacteria

1.  Which of the following alpha-hemolytic bacteria is most commonly associated with dental caries? 

Question 1 of 5

2. A patient presents with a fever, chills, and a cough producing rust-colored sputum. A sputum culture grows alpha-hemolytic bacteria that are optochin sensitive. Which of the following is the most likely pathogen? 

Question 2 of 5

3. During a routine check-up, a patient's blood culture grows alpha-hemolytic bacteria that are not sensitive to optochin. Which of the following is the most likely organism?

Question 3 of 5

4. A 4-year-old child presents with a fever and sore throat. Throat swab cultures on blood agar show alpha-hemolysis. The child's rapid antigen detection test (RADT) for *Streptococcus pyogenes* is negative. Which of the following alpha-hemolytic bacteria might be responsible for the child's symptoms?

Question 4 of 5

5. A patient with a history of intravenous drug use is admitted with symptoms of fever, weight loss, and a newly detected heart murmur. Cultures of the patient's blood reveal alpha-hemolytic bacteria that are resistant to optochin and do not dissolve in bile. Which of the following organisms is most likely responsible for the patient's condition?

Question 5 of 5


 

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