Question 1

Marion is going to the hospital for a triple bypass operation.She will have general anesthesia, intravenous catheter, surgical wounds, and a urinary catheter.Which nosocomial infection is she at greatest risk for contracting?

Accepted Answer

A)  respiratory
B)  septicemia
C)  urinary tract
D)  surgical site
E)  meningitisF) B) and D)
G) All of the above

Question 2

Local edema, swollen lymph nodes, fever, soreness, and abscesses are indications of

Accepted Answer

A)  toxemia.
B)  inflammation.
C)  sequelae.
D)  a syndrome.
E)  latency.F) All of the above
G) B) and E)

Question 3

The primary, natural habitat of a pathogen where it continues to exist is called the

Accepted Answer

A)  fomite.
B)  carrier.
C)  vector.
D)  reservoir.
E)  source.F) A) and E)
G) None of the above

Question 4

When would Koch's Postulates be utilized?

Accepted Answer

A)  To determine the cause of a patient's illness in a hospital microbiology lab.
B)  To develop a new antibiotic in a pharmaceutical lab.
C)  To determine the cause of a new disease in a microbiology research lab.
D)  To formulate a vaccine against a new pathogen in a genetic engineering lab.
E)  Whenever the scientific method is used to investigate a microbiological problem.F) D) and E)
G) C) and E)

Question 5

The Centers for Disease Control and Prevention assigns the most virulent microbes known to cause human disease to biosafety level 4.

Accepted Answer

A) True 
 B)False

Question 6

Which is mismatched?

Accepted Answer

A)  Secondary infection - infection spreads to several tissue sites
B)  Mixed infection - several agents established at infection site
C)  Acute infection - rapid onset of severe, short-lived symptoms
D)  Local infection - pathogen remains at or near entry site
E)  Toxemia - pathogen's toxins carried by the blood to target tissuesF) C) and D)
G) B) and E)

Question 7

Septicemia means that a pathogen is present and multiplying in the blood.

Accepted Answer

A) True 
 B)False

Question 8

The human body typically begins to be colonized by its normal flora

Accepted Answer

A)  before birth, in utero.
B)  during, and immediately after birth.
C)  when a child first goes to school.
D)  when an infant gets its first infectious disease.
E)  during puberty.F) B) and C)
G) A) and C)

Question 9

Which portal of entry is the most commonly used by pathogens?

Accepted Answer

A)  urogenital
B)  gastrointestinal
C)  respiratory
D)  skin
E)  They are all equally used as portals.F) A) and D)
G) B) and C)

Question 10

A person with which occupation is most at risk for a zoonotic disease?

Accepted Answer

A)  accountant
B)  teacher
C)  nurse
D)  dental hygienist
E)  forest rangerF) A) and E)
G) C) and D)

Question 11

A fetus can get an infection when a pathogen in the mother's blood is capable of crossing the placenta to the fetal circulation and tissues.

Accepted Answer

A) True 
 B)False

Question 12

The stage of an infectious disease when specific signs and symptoms are seen and the pathogen is at peak activity is

Accepted Answer

A)  prodromal stage.
B)  convalescent stage.
C)  incubation period.
D)  period of invasion.
E)  All of the choices are correct.F) A) and E)
G) All of the above

Question 13

The virulence factors of a pathogen are established by how strong or weak a patient's body defenses are at the time of infection.

Accepted Answer

A) True 
 B)False

Question 14

A veterinary hospital had an outbreak of Salmonella infantis.Within the facility, how can Salmonella can be spread?

Accepted Answer

A)  Unwashed hands
B)  Feces
C)  Contaminated objects
D)  Multiple animals using the same stalls without proper cleaning
E)  All of the choices are correctF) D) and E)
G) A) and B)

Question 15

The total number of deaths in a population due to a disease is the _____ rate.

Accepted Answer

The answer of The total number of deaths in a...

Question 16

Which is mismatched?

Accepted Answer

A)  Fimbriae - adherence to substrate
B)  Capsules - antiphagocytic factor
C)  Coagulase - dissolve fibrin clots
D)  Leukocidins - damage white blood cells
E)  Hemolysins - damage red blood cellsF) B) and C)
G) A) and E)

Question 17

Exotoxins are

Accepted Answer

A)  proteins.
B)  only released after a cell is damaged or lysed.
C)  antiphagocytic factors.
D)  secretions that always target nervous tissue.
E)  lipopolysaccharides.F) A) and B)
G) B) and D)

Question 18

Leukopenia is the _____ in the level of white blood cells in a patient.

Accepted Answer

The answer of Leukopenia is the _____ in the level...

Question 19

The principal government agency responsible for tracking infectious diseases in the United States is the

Accepted Answer

A)  Centers for Disease Control and Prevention.
B)  World Health Organization.
C)  National Institutes of Health.
D)  United States Department of Agriculture.
E)  Infection Control Committee.F) A) and C)
G) A) and E)

Question 20

_____ are toxins that are the lipopolysaccharide of the outer membrane of gram negative cell walls.

Accepted Answer

The answer of _____ are toxins that are the lipopolysaccharide...

Exam 13: Microbe-Human Interactions: Infection and Disease

A person with which occupation is most at risk for a zoonotic disease?

Correct AnswerverifiedShow Answer

The total number of deaths in a population due to a disease is the _____ rate.

Correct AnswerverifiedShow Answer

Which portal of entry is the most commonly used by pathogens?

Correct AnswerverifiedShow Answer

When would Koch's Postulates be utilized?

Correct AnswerverifiedShow Answer

The virulence factors of a pathogen are established by how strong or weak a patient's body defenses are at the time of infection.

Correct AnswerverifiedShow Answer

Which is mismatched?

Correct AnswerverifiedShow Answer

_____ are toxins that are the lipopolysaccharide of the outer membrane of gram negative cell walls.

Correct AnswerverifiedShow Answer

The Centers for Disease Control and Prevention assigns the most virulent microbes known to cause human disease to biosafety level 4.

Correct AnswerverifiedShow Answer

Local edema, swollen lymph nodes, fever, soreness, and abscesses are indications of

Correct AnswerverifiedShow Answer

The primary, natural habitat of a pathogen where it continues to exist is called the

Correct AnswerverifiedShow Answer

Which is mismatched?

Correct AnswerverifiedShow Answer

Septicemia means that a pathogen is present and multiplying in the blood.

Correct AnswerverifiedShow Answer

The human body typically begins to be colonized by its normal flora

Correct AnswerverifiedShow Answer

A veterinary hospital had an outbreak of Salmonella infantis.Within the facility, how can Salmonella can be spread?

Correct AnswerverifiedShow Answer

The principal government agency responsible for tracking infectious diseases in the United States is the

Correct AnswerverifiedShow Answer

Leukopenia is the _____ in the level of white blood cells in a patient.

Correct AnswerverifiedShow Answer

Exotoxins are

Correct AnswerverifiedShow Answer

A fetus can get an infection when a pathogen in the mother's blood is capable of crossing the placenta to the fetal circulation and tissues.

Correct AnswerverifiedShow Answer

Marion is going to the hospital for a triple bypass operation.She will have general anesthesia, intravenous catheter, surgical wounds, and a urinary catheter.Which nosocomial infection is she at greatest risk for contracting?

Correct AnswerverifiedShow Answer

The stage of an infectious disease when specific signs and symptoms are seen and the pathogen is at peak activity is

Correct AnswerverifiedShow Answer

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