D311: WGU Microbiology with Lab: PA Questions With
Complete Solutions
A bacterial pathogen is found growing in the bloodstream of a
patient.
Which diagnosis is correct for this finding? Correct Answers
Septicemia
A dental hygienist nicked the gum of the patient during a routine
cleaning. A mild infection of the gum was followed 10 days
later with acute bacterial endocarditis.
Which type of infection caused the endocarditis? Correct
Answers A focal infection
A novel disease is epidemic in three countries.
What should the World Health Organization do first to manage
the spread? Correct Answers Determine the etiologic agent.
A patient presents with an infection on an implant.
What should the clinician consider in planning the treatment
course? Correct Answers The infection is likely a biofilm,
causing a physical barrier to antibiotics.
A patient recently had an outpatient surgical procedure. After a
few days at home, they noticed swelling and redness at their
incision site. How would this infection be classified? Correct
Answers Iatrogenic
, A person who is allergic to components of a vaccine is still
protected from contracting a virus due to the vast majority of the
surrounding population being vaccinated and unable to contract
a pathogen.
What is this phenomenon called? Correct Answers Herd
immunity
A physician is given a vaginal swab in order to test for post-
antibiotic vaginal infection.
Which microscopic technique would identify opportunistic
fungal pathogen? Correct Answers Wet mount stain
A pregnant person has received all of her childhood
immunizations, including for pertussis, but has chosen not to
receive boosters while pregnant or to immunize her child once it
is born.
What will happen to her child if exposed to pertussis at five
years old. Correct Answers The child's immune system will
need to fight the infection.
A student in a lab has just completed an endospore stain of
Bacillus anthracis and realized that heat was not applied during
the staining technique.
What will the student see upon microscopic examination of the
slide? Correct Answers Pink vegetative cells with clear round
areas.
Complete Solutions
A bacterial pathogen is found growing in the bloodstream of a
patient.
Which diagnosis is correct for this finding? Correct Answers
Septicemia
A dental hygienist nicked the gum of the patient during a routine
cleaning. A mild infection of the gum was followed 10 days
later with acute bacterial endocarditis.
Which type of infection caused the endocarditis? Correct
Answers A focal infection
A novel disease is epidemic in three countries.
What should the World Health Organization do first to manage
the spread? Correct Answers Determine the etiologic agent.
A patient presents with an infection on an implant.
What should the clinician consider in planning the treatment
course? Correct Answers The infection is likely a biofilm,
causing a physical barrier to antibiotics.
A patient recently had an outpatient surgical procedure. After a
few days at home, they noticed swelling and redness at their
incision site. How would this infection be classified? Correct
Answers Iatrogenic
, A person who is allergic to components of a vaccine is still
protected from contracting a virus due to the vast majority of the
surrounding population being vaccinated and unable to contract
a pathogen.
What is this phenomenon called? Correct Answers Herd
immunity
A physician is given a vaginal swab in order to test for post-
antibiotic vaginal infection.
Which microscopic technique would identify opportunistic
fungal pathogen? Correct Answers Wet mount stain
A pregnant person has received all of her childhood
immunizations, including for pertussis, but has chosen not to
receive boosters while pregnant or to immunize her child once it
is born.
What will happen to her child if exposed to pertussis at five
years old. Correct Answers The child's immune system will
need to fight the infection.
A student in a lab has just completed an endospore stain of
Bacillus anthracis and realized that heat was not applied during
the staining technique.
What will the student see upon microscopic examination of the
slide? Correct Answers Pink vegetative cells with clear round
areas.
