Nester's Microbiology: A Human Perspective

Denise Anderson, Sarah Salm, Deborah Allen

Chapter 23

Wound Infections - all with Video Answers

Educators

Chapter Questions

Problem 1

Which of the following about Staphylococcus aureus is false?
a) It is generally coagulase-positive.
b) Its infectious dose is increased in the presence of foreign material.
c) Some strains infecting wounds can cause toxic shock.
d) Nasal carriers have an increased the risk of surgical wound infection.
e) It is pyogenic.

Joanna Quigley

Joanna Quigley

Numerade Educator

Problem 2

Which of these statements about Streptococcus pyogenes is false?
a) It is a Gram-positive coccus occurring in chains.
b) Some strains that infect wounds can cause toxic shock.
c) Some strains that infect wounds can cause necrotizing fasciitis.
d) It can cause puerperal fever.
e) A vaccine is available for preventing $S$. pyogenes infections.

Joanna Quigley

Numerade Educator

Problem 3

Choose the one false statement about Pseudomonas aeruginosa.
a) It is widespread in nature.
b) Some strains can grow in distilled water.
c) It is a Gram-positive rod.
d) It produces pigments that together are green.
e) Under certain circumstances, it can grow anaerobically.

Joanna Quigley

Numerade Educator

Problem 4

Which of these statements about tetanus is true?
a) It can start from a bee sting.
b) Immunization is carried out using tiny doses of killed $C$. tetani.
c) Those who recover from the disease are immune for life.
d) Tetanus immune globulin does not prevent the disease.
e) It is easy to avoid exposure to spores of the causative organism.

Joanna Quigley

Numerade Educator

Problem 5

Choose the one true statement about gas gangrene.
a) There are few or no leukocytes in the wound drainage.
b) It is best to rely on antibacterial medications and avoid disfiguring surgery.
c) A toxoid is generally used to protect against the disease.
d) Only one antitoxin is used for treating all cases of the disease.
e) It is easy to avoid spores of the causative agent.

Joanna Quigley

Numerade Educator

Problem 6

Which of the following statements about actinomycosis is false?
a) It can occur in cattle.
b) It is caused by a branching filamentous bacterium.
c) It always appears on the jaw.
d) It can arise from intestinal surgery.
e) Its abscesses can penetrate bone.

Joanna Quigley

Numerade Educator

Problem 7

Which of the following statements about Pasteurella multocida is false?
a) Infections generally respond to a penicillin.
b) It can cause epidemics of fatal disease in domestic animals.
c) It is commonly found in the mouths of biting animals, including humans.
d) A vaccine is used to prevent $P .$ multocida disease in people.
e) Cat bites are more likely to result in $P .$ multocida infections than dog bites.

Joanna Quigley

Numerade Educator

Problem 8

Which of these statements about cat scratch disease is false?
a) It is a common cause of chronic lymph node enlargement in children.
b) It is a serious threat to individuals with AIDS.
c) Cat scratches are the only mode of transmission to humans.
d) It does not spread person to person.
e) It can affect the brain or heart valves in a small percentage of
cases.

Joanna Quigley

Numerade Educator

Problem 9

The following statements about Streptobacillus moniliformis are all true except
a) it can be transmitted by food contaminated with rodent feces.
b) pet store workers are at increased risk of infection.
c) it can be transmitted by the bites of animals other than rats.
d) human infection is characterized by irregular fevers, rash, and joint pain.
e) it is a Gram-positive spore-forming rod.

Joanna Quigley

Numerade Educator

Problem 10

Which statement concerning sporotrichosis is false?
a) It is characterized by ulcerating lesions along the path of a lymphatic vessel.
b) Person-to-person transmission is common.
c) It can occur in epidemics.
d) It can persist for years if not treated.
e) The causative organism is a dimorphic fungus.

Joanna Quigley

Numerade Educator