Bacteriology Lab Final questions well
answered to pass
A urine sample is collected and delivered to the lab. Which combination of media should the sample be
inoculated?
a. Phenylethyl alcohol agar (PEA) and blood agar (BAP)
b. MacConkey agar (MAC) and blood agar (BAP)
c. T-soy agar and eosin-methylene blue agar (EMB)
d. eosin-methylene blue agar (EMB) and MacConkey agar (MAC) - correct answer ✔✔MacConkey agar
(MAC) and blood agar (BAP)
A physician improperly washes his hands after treating a patient and then proceeds to shake hands with
a colleague. This would be an example of:
a. fomite transmission
b. hand to hand transmission
c. interpersonal transmission
d. direct transmission - correct answer ✔✔Direct Transmission
When collecting and culturing a throat swab, which media should yield the fewest amount of colony
types?
a. transport media
b. dry media
c. direct media
d. none of the above - correct answer ✔✔Dry media
While performing quantitative urinalysis,thymol crystals, used as a --------agent, were added to the
sample of contaminated urine. Why? - correct answer ✔✔-bacteriostatic
- To prevent or inhibit bacterial growth
, A ________test determines the presence of coliforms in a water sample, while a _______ test verifies
the coliform contamination of the sample. - correct answer ✔✔-presumptive
-Confirmation
After specimens from the GI tract have been collected and cultured, what does the lab technician look
for in a T-soy plate? - correct answer ✔✔motility
After specimens from the GI tract have been collected and cultured, what does the lab technician look
for in a EMB plate? - correct answer ✔✔lactose fermentation
After specimens from the GI tract have been collected and cultured, what does the lab technician look
for in a MAC plate? - correct answer ✔✔growth
what is the color indicator for thioglycollate broth? - correct answer ✔✔resazurin
Any chemical that inhibits microbial growth with in the body is what? - correct answer
✔✔chemotherapeutic Agent
What three things dose a reservoir of infection allow a microbe to do? - correct answer ✔✔1. Survive
2. Grow
3. Maintain its ability to cause disease
where would obligate aerobes be found in a test tube? - correct answer ✔✔just a bit below the surface
of the solution
where would obligate anaerobes be found in a test tube? - correct answer ✔✔at the bottom
where would microaerophiles be found in a test tube? - correct answer ✔✔in the middle
what must be added to a slide in order to perform a catalase test? - correct answer ✔✔H2O2
answered to pass
A urine sample is collected and delivered to the lab. Which combination of media should the sample be
inoculated?
a. Phenylethyl alcohol agar (PEA) and blood agar (BAP)
b. MacConkey agar (MAC) and blood agar (BAP)
c. T-soy agar and eosin-methylene blue agar (EMB)
d. eosin-methylene blue agar (EMB) and MacConkey agar (MAC) - correct answer ✔✔MacConkey agar
(MAC) and blood agar (BAP)
A physician improperly washes his hands after treating a patient and then proceeds to shake hands with
a colleague. This would be an example of:
a. fomite transmission
b. hand to hand transmission
c. interpersonal transmission
d. direct transmission - correct answer ✔✔Direct Transmission
When collecting and culturing a throat swab, which media should yield the fewest amount of colony
types?
a. transport media
b. dry media
c. direct media
d. none of the above - correct answer ✔✔Dry media
While performing quantitative urinalysis,thymol crystals, used as a --------agent, were added to the
sample of contaminated urine. Why? - correct answer ✔✔-bacteriostatic
- To prevent or inhibit bacterial growth
, A ________test determines the presence of coliforms in a water sample, while a _______ test verifies
the coliform contamination of the sample. - correct answer ✔✔-presumptive
-Confirmation
After specimens from the GI tract have been collected and cultured, what does the lab technician look
for in a T-soy plate? - correct answer ✔✔motility
After specimens from the GI tract have been collected and cultured, what does the lab technician look
for in a EMB plate? - correct answer ✔✔lactose fermentation
After specimens from the GI tract have been collected and cultured, what does the lab technician look
for in a MAC plate? - correct answer ✔✔growth
what is the color indicator for thioglycollate broth? - correct answer ✔✔resazurin
Any chemical that inhibits microbial growth with in the body is what? - correct answer
✔✔chemotherapeutic Agent
What three things dose a reservoir of infection allow a microbe to do? - correct answer ✔✔1. Survive
2. Grow
3. Maintain its ability to cause disease
where would obligate aerobes be found in a test tube? - correct answer ✔✔just a bit below the surface
of the solution
where would obligate anaerobes be found in a test tube? - correct answer ✔✔at the bottom
where would microaerophiles be found in a test tube? - correct answer ✔✔in the middle
what must be added to a slide in order to perform a catalase test? - correct answer ✔✔H2O2
