Term
| What are the top three most likely pathogens in a bacterial sinusitis, acute bacterial rhinitis, acute otitis media, and a community acquired pneumonia? |
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Definition
Strep. pneumoniae (20-43%)
H. influenzae (22-35%)
M. catarrhalis (2-10%) |
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Term
What antibiotic is effective against ordinary Strep. Pneumoniae?
How often is Strep. Pneumoniae drug resistant, and what antibiotic should be used to treat a resistant strain? |
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Definition
Amoxicillin (a beta-lactam / Penicillin)
Resistant 25% of the time. Augmentin (keeps bacteria from destroying the beta-lactam ring of the amoxicillin) |
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Term
What antibiotic is effective against ordinary H. influenzae?
How often is H. influenzae drug resistant (produces beta-lactamase), and what antibiotic should be used to treat a resistant strain? |
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Definition
Amoxicillin
Resistant 30% of the time (due to bacterial beta-lactamase production which affects the beta-lactam ring of the amoxicillin).
Augmentin will destroy resistant strains as well. |
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Term
What antibiotic is effective against ordinary M. catarrhalis?
How often is M. catarrhalis drug resistant, and what antibiotic should be used to treat a resistant strain? |
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Definition
Amoxicillin
90% resistance by producing beta-lactamase!
Will certainly have to use augmentin. |
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