Chapter 4 Bacterial Diseasess

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Quizzes Created: 13 | Total Attempts: 93,017

Questions: 17 | Attempts: 898 | Updated: Aug 21, 2023

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Chapter 4 Bacterial Diseasess

A patient presents with a brain abscess. The dominant organism is an anaerobe normally found as part of the oral flora. Which of the following best fits that description?

A 3 year old presents with difficulty breathing and will not lie down to be examined. You suspect acute bacterial epiglottitis and examine the child’s epiglottis, which is highly inflamed. Which vaccine are you most likely to find that the child is missing?

A 22-year-old cystic fibrosis patient presents with fever and increasing dyspnea. A Gram-negative organism is found in unusually high numbers in the mucus. Which virulence factor is most important in colonization and maintenance of the organism in the lungs?

Exotoxin A most closely resembles the action of which other microbial toxin?

Patient develops diarrhea 5 days after starting antibiotic treatment for a serious staphylococcal infection. What is the most likely causative agent?

A patient develops mild gastroenteritis a few days after having a variety of sushi at a party. There is no blood or pus in the stool. Which causative agent is most likely to have caused this illness?

Yersinia pestis may be transferred by

A previously healthy 6 month old now looks limp. He cannot hold his eyes open, pupils do not react, and he cannot hold his head up. What is the proper treatment?

A 78-year-old man develops a high fever, cough producing a blood-tinged sputum, and difficulty breathing. Sputum shows organism consistent with Streptococcus pneumoniae. What is the most important virulence factor?

Which of the following organisms grows in 40% bile?

A patient recently returned from Africa has been febrile for several days and now has abdominal pain. His blood cultures grow out Salmonella typhi. What was the most likely source of his infection?

A patient has a gastric ulcer not induced by non-steroidal anti-inflammatory agents. Which characteristic appears to play a central role in the ability of the organism to survive transit of the lumen to colonize the stomach?

A54-year-old man develops a pyogenic infection along the suture line after knee surgery. The laboratory gives a preliminary report of a beta-hemolytic, catalase-positive, coagulase-positive, Gram-positive coccus. The most likely causative agent is