Antimicrobial Chemotherapeutic Agents Which of the following antibiotics can't be used for treatment of infections with β-lactamase-producing Staphylococcus aureus? Ampicillin/sulbactam Cephalothin Piperacillin Vancomycin Ampicillin/sulbactam Cephalothin Piperacillin Vancomycin ANSWER DOWNLOAD EXAMIANS APP
Antimicrobial Chemotherapeutic Agents Which of the following drugs may show plasmid-mediated resistance? Methicillin Rifampicin Ampicillin Nalidixic acid Methicillin Rifampicin Ampicillin Nalidixic acid ANSWER DOWNLOAD EXAMIANS APP
Antimicrobial Chemotherapeutic Agents The penicillin stable in gastric acid and suitable for oral administration is pencillin-G closacillin carbenicillin methicillin pencillin-G closacillin carbenicillin methicillin ANSWER DOWNLOAD EXAMIANS APP
Antimicrobial Chemotherapeutic Agents Cycloserine inhibits amidase alanine racemase Both (a) and (b) D-alanyl - D-alanine synthetase amidase alanine racemase Both (a) and (b) D-alanyl - D-alanine synthetase ANSWER DOWNLOAD EXAMIANS APP
Antimicrobial Chemotherapeutic Agents The mode of action of polymyxin is to injury to the plasma membrane inhibit folic acid synthesis inhibit DNA synthesis inhibit protein synthesis injury to the plasma membrane inhibit folic acid synthesis inhibit DNA synthesis inhibit protein synthesis ANSWER DOWNLOAD EXAMIANS APP
Antimicrobial Chemotherapeutic Agents Which of the following may cause resistance to penicillin? Impermeability of cell envelope Production of β-lactamases by bacteria All of these Alteration or lack of penicillin-binding proteins Impermeability of cell envelope Production of β-lactamases by bacteria All of these Alteration or lack of penicillin-binding proteins ANSWER DOWNLOAD EXAMIANS APP
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