MRSA Exam Preparation Newest With
Complete Questions And Correct Detailed
Answers| Brand New Version!
Staphylococci aureus are catalase-positive, gram-positive cocci that belong in this
family. What is this family?
a. Micrococcaceae
b. Streptococcaceae
c. Staphylococcaceae
d. Enterobacteriaceae - Correct Answer-c. Staphylococcaceae
The two most common species of coagulase-negative staphylococci are:
a.Staphylococcus aureus, S. epidermidis
b.S. capitus, S. lugdunensis
c.S. epidermidis, S. saprophyticus
d.S. saccharolyticus, S. epidermidis - Correct Answer-c.S. epidermidis, S.
saprophyticus
A drug used for MRSA infections:
a.vancomycin
b.penicillin
c.cephalothin
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,d.methicillin - Correct Answer-a.vancomycin
The virulence factor that causes sloughing of the epidermal layer of the skin:
a.Protein A
b.Leukocidin
c.Enterotoxins A & D
d.Exfoliative toxin - Correct Answer-d.Exfoliative toxin
The virulence factor that causes food poisoning:
a.Leukocidin
b.Enterotoxin
c.Protein A
d.Hyaluronidase - Correct Answer-b.Enterotoxin
The test used to differentiate Staphylococcus saprophyticus from other members
of CNS:
a.Slide coagulase
b.Catalase
c.Tube coagulase
d.Novobiocin susceptibility - Correct Answer-d.Novobiocin susceptibility
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,Binds the Fc portion of the immunoglobin, allowing the bacteria to avoid
phagocytosis:
a.Leukocidin
b.Alpha hemolysis
c.Protein A
d.Beta hemolysis - Correct Answer-c.Protein A
The Clumping Factor is another name for:
a.Extracellular coagulase
b.Cell-bound coagulase
c.Free coagulase
d.Hyaluronidase - Correct Answer-b.Cell-bound coagulase
Human carriers of S. aureus have the organism where?
a.In the sputum
b.In the feces
c.In the nares & axilla
d.In the saliva - Correct Answer-c.In the nares & axilla
The microscopic morphology of Micrococcus sp.is:
a.GPC in clusters
b.GPR in tetrads
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, c.GPC in pairs
d.GPC in tetrads - Correct Answer-d.GPC in tetrads
All of the following are diseases caused by S. aureus EXCEPT:
a.carbuncles
b.furuncles
c.pharyngitis
d.folicullitis - Correct Answer-c.pharyngitis
Selective media for the isolation ofStaphylococcus includes:
a.CNA
b.MacConkey
c.PEA
d.Both a & c - Correct Answer-d.Both a & c
Detects free coagulase:
a.Tube coagulase
b.Clumping factor
c.Slide coagulase
d.All of the above - Correct Answer-a.Tube coagulase
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Complete Questions And Correct Detailed
Answers| Brand New Version!
Staphylococci aureus are catalase-positive, gram-positive cocci that belong in this
family. What is this family?
a. Micrococcaceae
b. Streptococcaceae
c. Staphylococcaceae
d. Enterobacteriaceae - Correct Answer-c. Staphylococcaceae
The two most common species of coagulase-negative staphylococci are:
a.Staphylococcus aureus, S. epidermidis
b.S. capitus, S. lugdunensis
c.S. epidermidis, S. saprophyticus
d.S. saccharolyticus, S. epidermidis - Correct Answer-c.S. epidermidis, S.
saprophyticus
A drug used for MRSA infections:
a.vancomycin
b.penicillin
c.cephalothin
1|Page
,d.methicillin - Correct Answer-a.vancomycin
The virulence factor that causes sloughing of the epidermal layer of the skin:
a.Protein A
b.Leukocidin
c.Enterotoxins A & D
d.Exfoliative toxin - Correct Answer-d.Exfoliative toxin
The virulence factor that causes food poisoning:
a.Leukocidin
b.Enterotoxin
c.Protein A
d.Hyaluronidase - Correct Answer-b.Enterotoxin
The test used to differentiate Staphylococcus saprophyticus from other members
of CNS:
a.Slide coagulase
b.Catalase
c.Tube coagulase
d.Novobiocin susceptibility - Correct Answer-d.Novobiocin susceptibility
2|Page
,Binds the Fc portion of the immunoglobin, allowing the bacteria to avoid
phagocytosis:
a.Leukocidin
b.Alpha hemolysis
c.Protein A
d.Beta hemolysis - Correct Answer-c.Protein A
The Clumping Factor is another name for:
a.Extracellular coagulase
b.Cell-bound coagulase
c.Free coagulase
d.Hyaluronidase - Correct Answer-b.Cell-bound coagulase
Human carriers of S. aureus have the organism where?
a.In the sputum
b.In the feces
c.In the nares & axilla
d.In the saliva - Correct Answer-c.In the nares & axilla
The microscopic morphology of Micrococcus sp.is:
a.GPC in clusters
b.GPR in tetrads
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, c.GPC in pairs
d.GPC in tetrads - Correct Answer-d.GPC in tetrads
All of the following are diseases caused by S. aureus EXCEPT:
a.carbuncles
b.furuncles
c.pharyngitis
d.folicullitis - Correct Answer-c.pharyngitis
Selective media for the isolation ofStaphylococcus includes:
a.CNA
b.MacConkey
c.PEA
d.Both a & c - Correct Answer-d.Both a & c
Detects free coagulase:
a.Tube coagulase
b.Clumping factor
c.Slide coagulase
d.All of the above - Correct Answer-a.Tube coagulase
4|Page
