Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

PSBIM review > IDS > Flashcards

IDS Flashcards

1
Q

How do Clostridium species typically appear when stained in the early stages of growth?

A

Gram-positive

Answer: B) Gram-positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which of the following Clostridium species is known to swarm on solid media?

A

C. septicum

Answer: D) C. septicum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the primary mode of transmission for Clostridium species?

A

Endospores in soil and feces

Answer: C) Endospores in soil and feces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Which toxin is considered one of the most potent known to humans?

A

Botulinum toxin

Answer: B) Botulinum toxin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What condition is commonly associated with Clostridium perfringens in agricultural regions?

A

Gas gangrene

Answer: B) Gas gangrene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which of the following is NOT a life-threatening clostridial infection?
A. Tetanus
B. Myconecrosis
C. Chronic bronchitis
D. Toxic shock syndrome

A

C. Chronic bronchitis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Most frequently isolated clostridium spp from suppurative infection of the female genital tract

A

C. Perfringens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q
  1. What is the recommended empirical treatment for mixed aerobic/anaerobic infections of the abdomen?

A) Clindamycin alone
B) Ampicillin or ampicillin/sulbactam combined with clindamycin or metronidazole
C) Ticarcillin alone
D) Penicillin only

A

B) Ampicillin or ampicillin/sulbactam combined with clindamycin or metronidazole

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

C. perfringens type A is primarily associated with which of the following conditions?

A) Gas gangrene
B) Food-borne illness
C) Necrotizing fasciitis
D) Bacteremia

A

B) Food-borne illness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which condition is characterized by extensive necrosis of the intestinal mucosa and is caused by C. perfringens type C?

A) Necrotizing fasciitis
B) Enteritis necroticans
C) Gas gangrene
D) Toxic shock syndrome

A

B. Enteritis necroticans

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the primary mechanism by which C. perfringens enterotoxin causes illness?

A) Inhibiting protein synthesis
B) Forming pores in host cell membranes
C) Destroying red blood cells
D) Inducing apoptosis in immune cells

A

B) Forming pores in host cell membranes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which of the following conditions is specifically associated with C. perfringens and can lead to gas formation in the biliary system?

A) Enteritis necroticans
B) Emphysematous cholecystitis
C) Gas gangrene
D) Tetanus

A

B) Emphysematous cholecystitis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Which species of Clostridium is known for being resistant to metronidazole and clindamycin?

A) C. perfringens
B) C. septicum
C) C. tertium
D) C. sordellii

A

C) C. tertium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the most fulminant type of gas gangrene infection?

A) C. novyi infection
B) C. histolyticum infection
C) C. perfringens myonecrosis
D) C. sordellii infection

A

C) C. perfringens myonecrosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What environmental condition is necessary for the development of gas gangrene?

A) Aerobic environment
B) Anaerobic environment
C) High oxygen levels
D) Low moisture levels

A

B) Anaerobic environment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which type of injury is particularly predisposed to traumatic gas gangrene?

A) Superficial cuts
B) Crush-type injuries
C) Sprains
D) Minor abrasions

A

B) Crush-type injuries

17
Q

What is the recommended first-line antibiotic treatment for traumatic gas gangrene?

A) Vancomycin
B) Clindamycin
C) Metronidazole
D) Penicillin

A

D) Penicillin

18
Q

Which toxin produced by C. perfringens is considered a major virulence factor?

A) β toxin
B) γ toxin
C) α toxin
D) θ toxin

A

C) α toxin

19
Q

What type of patients are at increased risk for spontaneous gas gangrene due to C. septicum?

A) Healthy individuals
B) Those with diabetes
C) Individuals with neutropenia
D) Elderly patients

A

C) Individuals with neutropenia

20
Q

Which diagnostic tool is useful for determining if a gas gangrene infection is localized or spreading?

A) Ultrasound
B) X-ray
C) CT and MRI
D) Blood tests

A

C) CT and MRI

21
Q

How is a lung abscess characterized in terms of cavity size?
A) >1 cm
B) >2 cm
C) >5 cm
D) >10 cm

A

B. >2 cm

22
Q

How is a lung abscess characterized in terms of cavity size?
A) >1 cm
B) >2 cm
C) >5 cm
D) >10 cm

A

B. >2 cm

23
Q

What is the recommended duration of treatment for a primary lung abscess?

A

3–4 weeks to 14 weeks

24
Q

What is the primary manifestation of Neisseria meningitidis infection in healthy individuals?

A

Asymptomatic colonization in the nasopharynx

25
Q

Which two major forms of invasive disease does N. meningitidis typically present as?

A

Bacterial meningitis and meningococcal septicemia.

PSBIM review (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions