MICROBIOLOGY EXAM 2 TEST BANK
QUESTIONS AND VERIFIED ANSWERS
(LATEST 2026- 2027) 100% CORRECT
A 6-year-old girl is diagnosed with a bullous impetigo
infection. Based on this information, the catalase and
coagulase results of the infecting organism are expected
to be catalase-_____ and coagulase-_____.
A. negative; negative
B. positive; negative
C. positive; positive
D. negative; positive - correct answer- C
A 36-year-old man enters the emergency department
with lesions that are painful, red, swollen, and indurated.
He is febrile and exhibiting regional lymphadenopathy
(swollen glands). The lesions are marked and well
demarcated with a raised border. Which organism is most
likely responsible for causing this infection?
A. Streptococcus pyogenes
B. Pseudomonas aeruginosa
C. Microsporum spp.
,D. Bacteroides fragilis group - correct answer-
A
A 68-year-old man has an osteomyelitis infection as a
result of bacteremia. The most common etiologic agent
found in this infection is:
A. Haemophilus spp.
B. Staphylococcus aureus.
C. Pseudomonas aeruginosa.
D. Fusobacterium necrophorum. - correct answer-
B
A 76-year-old man attends a meeting at his condominium
association where many of his neighbors are sick with
respiratory symptoms. He later develops a Haemophilus
influenza infection, which is classified as a _________
infection.
A. nosocomial
B. hospital-acquired
C. community-acquired
D. heath care-related - correct answer- C
,A collective term used for the three layers of membranes
surrounding the brain and spinal column is the:
A. dura mater.
B. meninges.
C. arachnoid.
D. pia mater. - correct answer- B
A condition characterized by concomitant meningitis that
occurs with encephalitis is called:
A. meningoencephalitis.
B. aseptic meningitis.
C. encephalitis.
D. pleocytosis. - correct answer- A
A culture performed on a vaginal specimen collected from
a 38-year-old woman would likely grow primarily:
A. group B beta-hemolytic streptococci.
B. staphylococci and corynebacteria.
, C. lactobacilli, Enterobacteriaceae, streptococci, and
staphylococci.
D. Gardnerella vaginalis, Prevotella spp.,
Peptostreptococcus spp., and Mobiluncus spp. -
correct answer- C
A culture performed on a vaginal specimen collected from
a 60-year-old woman would likely grow primarily:
A. group B beta-hemolytic streptococci.
B. staphylococci and corynebacteria.
C. Enterobacteriaceae, streptococci, staphylococci,
lactobacilli, and anaerobes.
D. Gardnerella vaginalis, Prevotella spp.,
Peptostreptococcus spp., and Mobiluncus spp. -
correct answer- B
A gram-negative bacillus that is hydrogen sulfide (H2S)-
positive, citrate-positive, spot indole-negative, and
associated with gastroenteritis in the United States is
most likely:
A. Klebsiella pneumoniae.
QUESTIONS AND VERIFIED ANSWERS
(LATEST 2026- 2027) 100% CORRECT
A 6-year-old girl is diagnosed with a bullous impetigo
infection. Based on this information, the catalase and
coagulase results of the infecting organism are expected
to be catalase-_____ and coagulase-_____.
A. negative; negative
B. positive; negative
C. positive; positive
D. negative; positive - correct answer- C
A 36-year-old man enters the emergency department
with lesions that are painful, red, swollen, and indurated.
He is febrile and exhibiting regional lymphadenopathy
(swollen glands). The lesions are marked and well
demarcated with a raised border. Which organism is most
likely responsible for causing this infection?
A. Streptococcus pyogenes
B. Pseudomonas aeruginosa
C. Microsporum spp.
,D. Bacteroides fragilis group - correct answer-
A
A 68-year-old man has an osteomyelitis infection as a
result of bacteremia. The most common etiologic agent
found in this infection is:
A. Haemophilus spp.
B. Staphylococcus aureus.
C. Pseudomonas aeruginosa.
D. Fusobacterium necrophorum. - correct answer-
B
A 76-year-old man attends a meeting at his condominium
association where many of his neighbors are sick with
respiratory symptoms. He later develops a Haemophilus
influenza infection, which is classified as a _________
infection.
A. nosocomial
B. hospital-acquired
C. community-acquired
D. heath care-related - correct answer- C
,A collective term used for the three layers of membranes
surrounding the brain and spinal column is the:
A. dura mater.
B. meninges.
C. arachnoid.
D. pia mater. - correct answer- B
A condition characterized by concomitant meningitis that
occurs with encephalitis is called:
A. meningoencephalitis.
B. aseptic meningitis.
C. encephalitis.
D. pleocytosis. - correct answer- A
A culture performed on a vaginal specimen collected from
a 38-year-old woman would likely grow primarily:
A. group B beta-hemolytic streptococci.
B. staphylococci and corynebacteria.
, C. lactobacilli, Enterobacteriaceae, streptococci, and
staphylococci.
D. Gardnerella vaginalis, Prevotella spp.,
Peptostreptococcus spp., and Mobiluncus spp. -
correct answer- C
A culture performed on a vaginal specimen collected from
a 60-year-old woman would likely grow primarily:
A. group B beta-hemolytic streptococci.
B. staphylococci and corynebacteria.
C. Enterobacteriaceae, streptococci, staphylococci,
lactobacilli, and anaerobes.
D. Gardnerella vaginalis, Prevotella spp.,
Peptostreptococcus spp., and Mobiluncus spp. -
correct answer- B
A gram-negative bacillus that is hydrogen sulfide (H2S)-
positive, citrate-positive, spot indole-negative, and
associated with gastroenteritis in the United States is
most likely:
A. Klebsiella pneumoniae.
