BOC Microbiology Test Study -Questions with
100% Correct Answers | Verified
What is the media of choice for recovery of Vibrio cholerae from a stool specimen? -
✔✔Thiosulfate-citrate-bile-sucrose (TCBS) agar and alkaline peptone water (APW)
broth
Colistin-nalidixic acid agar (CNA) is used primarily for the recovery of: -
✔✔Staphylococcus aureus
In the United States, most blood agar plates are prepared with 5% or 10% red blood
cells (RBCs) obtained from: - ✔✔Sheep
Would it be appropriate to transport culture speciments attempting to isolate N.
gonorrhoeae from a genital specimen in ambient oxygen at 37C? - ✔✔No, cultures
should be incubated in 3% to 7%CO2 at 35C.
Chocolate agar and modified Thayer-Martin agar are used for the recovery of? -
✔✔Haemophilus spp. and N. gonorrhoeae, respectively.
Cycloserine-cefoxitin-fructose agar (CCFA) is used for the recovery of? -
✔✔Clostridium difficile
Deoxycholate agar (DCA) is useful for the isolation of? - ✔✔Enterobacteriaceae
Xylose lysine deoxycholate (XLD) agar is highly selective medium used for the recovery
of which bacteria? - ✔✔Enterobacteriaceae from gastrointestinal specimens
, A sheep blood agar plate is used as a primary isolation medium when all of the following
organisms are to be recovered from a wound specimen except: - ✔✔Haemophilus
influenzae and Haemophilus parainfluenzae
Prereduced and vitamin K1-supplemented blood agar plates are recommended isolation
media for? - ✔✔Bacteroides, Peptostreptococcus, and Clostridium spp.
Which procedure is appropriate for culture of genital specimens in order to recover
Chlamydia spp.? - ✔✔Inoculate cycloheximide-treated McCoy cells. (Chlamydia is an
intracellular species).
Specimens for virus culture should be transported in media containing: -
✔✔Antibiotics and nutrient.
Cerebrospinal fluid (CSF) should be cultured immediately, but if delayed the specimen
should be: - ✔✔Incubated at 37C and cultured as soon as possible
The most sensitive method for the detection of Beta-lactamase in bacteria is by the use
of? - ✔✔Chromogenic cephalosporin
The breakpoint of an antimicrobial drug refers to: - ✔✔The level of drug that is
achievable in serum
Which of the following variables may change the results of an MIC - ✔✔Inoculum
size, Incubation time, growth rate of the bacteria.
100% Correct Answers | Verified
What is the media of choice for recovery of Vibrio cholerae from a stool specimen? -
✔✔Thiosulfate-citrate-bile-sucrose (TCBS) agar and alkaline peptone water (APW)
broth
Colistin-nalidixic acid agar (CNA) is used primarily for the recovery of: -
✔✔Staphylococcus aureus
In the United States, most blood agar plates are prepared with 5% or 10% red blood
cells (RBCs) obtained from: - ✔✔Sheep
Would it be appropriate to transport culture speciments attempting to isolate N.
gonorrhoeae from a genital specimen in ambient oxygen at 37C? - ✔✔No, cultures
should be incubated in 3% to 7%CO2 at 35C.
Chocolate agar and modified Thayer-Martin agar are used for the recovery of? -
✔✔Haemophilus spp. and N. gonorrhoeae, respectively.
Cycloserine-cefoxitin-fructose agar (CCFA) is used for the recovery of? -
✔✔Clostridium difficile
Deoxycholate agar (DCA) is useful for the isolation of? - ✔✔Enterobacteriaceae
Xylose lysine deoxycholate (XLD) agar is highly selective medium used for the recovery
of which bacteria? - ✔✔Enterobacteriaceae from gastrointestinal specimens
, A sheep blood agar plate is used as a primary isolation medium when all of the following
organisms are to be recovered from a wound specimen except: - ✔✔Haemophilus
influenzae and Haemophilus parainfluenzae
Prereduced and vitamin K1-supplemented blood agar plates are recommended isolation
media for? - ✔✔Bacteroides, Peptostreptococcus, and Clostridium spp.
Which procedure is appropriate for culture of genital specimens in order to recover
Chlamydia spp.? - ✔✔Inoculate cycloheximide-treated McCoy cells. (Chlamydia is an
intracellular species).
Specimens for virus culture should be transported in media containing: -
✔✔Antibiotics and nutrient.
Cerebrospinal fluid (CSF) should be cultured immediately, but if delayed the specimen
should be: - ✔✔Incubated at 37C and cultured as soon as possible
The most sensitive method for the detection of Beta-lactamase in bacteria is by the use
of? - ✔✔Chromogenic cephalosporin
The breakpoint of an antimicrobial drug refers to: - ✔✔The level of drug that is
achievable in serum
Which of the following variables may change the results of an MIC - ✔✔Inoculum
size, Incubation time, growth rate of the bacteria.
