M6: Microbiology, Parasitology, and Public Health - Bacteriology - Part 2 - Gram Positive Cocci

Catalase positive gram positive cocci.

a. Staphylococcus

b. Streptococcus

a. Staphylococcus

Catalase negative gram positive cocci.

a. Staphylococcus

b. Streptococcus

b. Streptococcus

Used for coagulase test of Staphylococcus.

a. Mannitol Salt Agar

b. Novobiocin Sensitivity

c. Optochin Sensitivity

d. Bacitracin Sensitivity

a. Mannitol Salt Agar

Staphylococcus that is coagulase positive.

a. Staphylococcus aureus

b. Staphylococcus epidermis

c. Staphylococcus saphropyticus

d. a and b

e. b and c

f. All

a. Staphylococcus aureus

Staphylococcus that is coagulase negative.

a. Staphylococcus aureus

b. Staphylococcus epidermis

c. Staphylococcus saphropyticus

d. a and b

e. b and c

f. All

e. b and c

Staphylococcus epidermis

Staphylococcus saphropyticus

Used for differentiating S. epidermis from S. saphrophyticus.

a. Mannitol Salt Agar

b. Novobiocin Sensitivity

c. Optochin Sensitivity

d. Bacitracin Sensitivity

b. Novobiocin Sensitivity

Sensitive on novobiocin.

a. Staphylococcus epidermis

b. Staphylococcus saphropyticus

a. Staphylococcus epidermis

Resistant on novobiocin.

a. Staphylococcus epidermis

b. Staphylococcus saphropyticus

b. Staphylococcus saphropyticus

Used for determination of alpha hemolysis resistance or sensitivity of streptococcus.

a. Mannitol Salt Agar

b. Novobiocin Sensitivity

c. Optochin Sensitivity

d. Bacitracin Sensitivity

c. Optochin Sensitivity

Quellung reaction.

a. Mannitol Salt Agar

b. Novobiocin Sensitivity

c. Optochin Sensitivity

d. Bacitracin Sensitivity

c. Optochin Sensitivity

Streptoccous that is alpha hemolytic and sensitive optochin.

a. Streptococcus pneumoniae

b. Viridans streptococcus

a. Streptococcus pneumoniae

Streptoccous that is not alpha hemolytic, resistant to optochin.

a. Streptococcus pneumoniae

b. Viridans streptococcus

b. Viridans streptococcus

Beta hemolysis resistance is determined through:

a. Mannitol Salt Agar

b. Novobiocin Sensitivity

c. Optochin Sensitivity

d. Bacitracin Sensitivity

e. 0.5% NaCl

d. Bacitracin Sensitivity

Streptococcus that is beta hemolytic

a. Streptococcus pyogenes

b. Streptococcus agalactiae

a. Streptococcus pyogenes - The Group A Beta Hemolytic Streptococcus (GABHS)

Streptococcus that is resistant to beta hemolysis.

a. Streptococcus pyogenes

b. Streptococcus agalactiae

b. Streptococcus agalactiae - Group B Streptococcus (GBS)

Used to determine gamma hemolysis of streptococcus.

a. Mannitol Salt Agar

b. Novobiocin Sensitivity

c. Optochin Sensitivity

d. Bacitracin Sensitivity

e. 0.5% NaCl

e. 0.5% NaCl

Gamma hemolytic.

a. Enterococcus species

b. Streptococcus bovis

a. Enterococcus species

Gamma hemolysis resistant.

a. Enterococcus species

b. Streptococcus bovis

b. Streptococcus bovis

Staphylococcus aureus virulence factor that causes boils, furuncle, carbuncle.

a. Lipase

b. Exfoliatin

c. Enterotoxin B

d. B-lactamase

e. Protein A

a. Lipase

Staphylococcus aureus virulence factor that causes Staphylococcal Scalded Skin Syndrome (SSSS).

a. Lipase

b. Exfoliatin

c. Enterotoxin B

d. B-lactamase

e. Protein A

b. Exfoliatin

Staphylococcus aureus virulence factor that causes foods poisoning and toxic shock syndrome (SSSS + hypotension).

a. Lipase

b. Exfoliatin

c. Enterotoxin B

d. B-lactamase

e. Protein A

c. Enterotoxin B

Staphylococcus aureus virulence factor that causes antibiotic resistance.

a. Lipase

b. Exfoliatin

c. Enterotoxin B

d. B-lactamase

e. Protein A

d. B-lactamase

Staphylococcus aureus virulence factors except:

a. Protein A

b. Techoic acid

c. Capsule

d. Hyaluronidase

e. None

e. None

Staphylococcus aureus is a humam normal flora found in the:

a. Mouth

b. Nares

c. Lungs

d. Trachea

e. Genital

b. Nares

S. aureus route of transmission:

a. Droplet

b. Direct

c. Food borne

d. a and b

e. All

e. All

S. aureus can cause the following diseases except:

a. Acute endocarditis

b. Food poisoning

c. Pneumonia

d. Septic arthritis and osteomyelitis

e. Scalded skin syndrome

f. None

f. None

S. aureus can cause the following diseases except:

a. Skin and soft tissue infections

b. Toxic shock syndrome

c. Pneumonia

d. Septic arthritis and osteomyelitis

e. Scalded skin syndrome

f. None

f. None

S. aureus disease that is common among IV drug and affect the tricuspid valve.

a. Acute endocarditis

b. Food poisoning

c. Pneumonia

d. Septic arthritis and osteomyelitis

e. Scalded skin syndrome

a. Acute endocarditis

S. aureus releases heat stable toxin causing:

a. Acute endocarditis

b. Food poisoning

c. Pneumonia

d. Septic arthritis and osteomyelitis

e. Scalded skin syndrome

b. Food poisoning - usually in salad and mayonnaise

Causes toxic shock syndrome associated with use of tampon causing rashes and hypotension but produce negative blood culture.

a. S. aures

b. S. epidermis

c. S. saprophyticus

a. S. aures.

Anti-staphylococcal penicillin

a. Methicillin

b. Oxacillin

c. Nafcillin

d. a and b

e. All

e. All

Anti-staphylococcal penicillin that is nephrotoxic.

a. Methicillin

b. Oxacillin

c. Nafcillin

d. a and b

e. All

a. Methicillin

Anti-staphylococcal penicillin that is causes rashes.

a. Methicillin

b. Oxacillin

c. Nafcillin

d. a and b

e. All

c. Nafcillin

DOC for MRSA.

a. Vancomycin

b. Linezolid

c. Streptogramins

d. a and b

e. All

a. Vancomycin

DOC for VRSA.

a. Vancomycin

b. Linezolid

c. Streptogramins

d. a and b

e. All

b. Linezolid

Alternative for VRSA.

a. Vancomycin

b. Linezolid

c. Streptogramins

d. a and b

e. All

c. Streptogramins

Has porcelain white colonies and is normal flora of the skin.

a. Staphylococcus aureus

b. Staphylococcus epidermis

c. Staphylococcus saprophyticus

b. Staphylococcus epidermis

Prefers foreign bodies forming biofilms and causes bacterial endocarditis in patients with prosthetic heart valves observed post operatively.

a. Staphylococcus aureus

b. Staphylococcus epidermis

c. Staphylococcus saprophyticus

b. Staphylococcus epidermis

Has colorless colonies and is normal flora of the vagina.

a. Staphylococcus aureus

b. Staphylococcus epidermis

c. Staphylococcus saprophyticus

c. Staphylococcus saprophyticus

Number 2 cause of UTI in sexually active females.

a. Staphylococcus aureus

b. Staphylococcus epidermis

c. Staphylococcus saprophyticus

c. Staphylococcus saprophyticus

Treatment for S. saprophyticus.

a. Vancomycin

b. Linezolid

c. Streptogramins

d. Fluoroquinolones

d. Fluoroquinolones

Group A beta hemolytic streptococcus.

a. Streptococcus pyogenes

b. Streptococcus agalactiae

c. Streptococcus pneumoniae

d. Viridans streptococcus

e. Nonenterococcus

a. Streptococcus pyogenes

Streptococcus pyogenes virulence factor except:

a. Protein M, Exotoxin A

b. Streptokinase

c. Streptolysin O and S

d. Streptodornase

e. Hyaluronidase

f. None

f. None

Fibrinolytic

a. Protein M, Exotoxin A

b. Streptokinase

c. Streptolysin O and S

d. Streptodornase

e. Hyaluronidase

b. Streptokinase

Spreading factor

a. Protein M, Exotoxin A

b. Streptokinase

c. Streptolysin O and S

d. Streptodornase

e. Hyaluronidase

e. Hyaluronidase

Antigenic.

a. Streptolysin O

b. Streptolysin S

a. Streptolysin O

Non antigenic

a. Streptolysin O

b. Streptolysin S

b. Streptolysin S

S. pyogenes suppurative infections except:

a. Pharyngitis

b. Cellulitis

c. Impetigo

d. Erysipelas

e. None

e. None

Flat ill defined redness that when severe, become necrotizing fascitis.

a. Pharyngitis

b. Cellulitis

c. Impetigo

d. Erysipelas

b. Cellulitis

Honey crusted lesions.

a. Pharyngitis

b. Cellulitis

c. Impetigo

d. Erysipelas

c. Impetigo

Painful red rash with orange peel.

a. Pharyngitis

b. Cellulitis

c. Impetigo

d. Erysipelas

d. Erysipelas

S. pyogenes non suppurative infections except:

a. Scarlet fever

b. Toxic shock syndrome

c. Rheumatic heart fever

d. Post streptococcal glomerulonephritis (PSGN)

e. None

e. None

S. pyogenes exotoxin A causes:

I. Scarlet fever

II. Toxic shock syndrome

III. Rheumatic heart fever

IV. Post streptococcal glomerulonephritis (PSGN)

a. I, II

b. I, III

c. II, III

d. III, IV

a. I, II

Scarlet fever

Toxic shock syndrome

S. pyogenes M protein causes:

I. Scarlet fever

II. Toxic shock syndrome

III. Rheumatic heart fever (RHF)

IV. Post streptococcal glomerulonephritis (PSGN)

a. I, II

b. I, III

c. II, III

d. III, IV

d. III, IV

Rheumatic heart fever (RHF)

Post streptococcal glomerulonephritis (PSGN)

Also known as the 2nd disease which is manifested as sandpaper rash, strawberry tongue, and sore throat.

a. Scarlet fever

b. Toxic shock syndrome

c. Rheumatic heart fever (RHF)

d. Post streptococcal glomerulonephritis (PSGN)

a. Scarlet fever

Less severe than that caused by S. aureus. Its difference is it produce positive blood culture and negative rash.

a. Scarlet fever

b. Toxic shock syndrome

c. Rheumatic heart fever (RHF)

d. Post streptococcal glomerulonephritis (PSGN)

b. Toxic shock syndrome

M protein of S. pyogenes causes what type of hypersensitivity?

a. I

b. II

c. III

d. IV

c. III

Preceded by strep throat infection and has the mechanism of action of molecular mimicry.

a. Scarlet fever

b. Toxic shock syndrome

c. Rheumatic heart fever (RHF)

d. Post streptococcal glomerulonephritis (PSGN)

c. Rheumatic heart fever (RHF)

Diagnosis for rheumatic heart fever except:

a. Joint arthritis

b. Carditis

c. Nodules

d. Erythema marginatum

e. Sydenham chorea

f. None

f. None - These are the JONES criteria

Management for rheumatic heart fever caused by S. pyogenes.

a. Pen G

b. Vancomycin

c. Fluoroquinolones

d. Chloramphenicol

e. Supportive management

a. Pen G

Disease caused by S. pyogenes which is preceded by a skin infection and pathology is through immune complex formation.

a. Scarlet fever

b. Toxic shock syndrome

c. Rheumatic heart fever (RHF)

d. Post streptococcal glomerulonephritis (PSGN)

d. Post streptococcal glomerulonephritis (PSGN)

Management for post streptococcal glomerulonephritis (PSGN).

a. Pen G

b. Vancomycin

c. Fluoroquinolones

d. Chloramphenicol

e. Supportive management

e. Supportive management

Normal flora of vagina which route of transmission is through an infected birth canal.

a. Streptococcus pyogenes

b. Streptococcus agalactiae

c. Streptococcus pneumoniae

d. Viridans streptococcus

b. Streptococcus agalactiae

Causes neonatal sepsis and meningitis.

a. Streptococcus pyogenes

b. Streptococcus agalactiae

c. Streptococcus pneumoniae

d. Viridans streptococcus

b. Streptococcus agalactiae

Treatment for neonatal sepsis and meningitis causes by S. agalactiae.

a. Pen G

b. Ampicillin + Gentamicin

c. Amoxicillin + Gentamicin

d. Chloramphenicol

e. Supportive management

b. Ampicillin + Gentamicin

A pneumococcus specifically a lancet-shaped diplococci.

a. Streptococcus pyogenes

b. Streptococcus agalactiae

c. Streptococcus pneumoniae

d. Viridans streptococcus

c. Streptococcus pneumoniae

Capsule is positive to Quelling reaction.

a. Streptococcus pyogenes

b. Streptococcus agalactiae

c. Streptococcus pneumoniae

d. Viridans streptococcus

e. Enterococcus

c. Streptococcus pneumoniae

Diseases caused by S. pneumoniae.

a. Community acquired pneumonia

b. Meningitis in elderly

c. Otitis media

d. a and b

e. b and c

f. All

f. All

Treatment for community acquired pneumonia (CAP).

a. 2nd/3rd gen cephalosporin + extended macrolide

b. 3rd gen cephalosporin

c. High dose penicillin

d. Ampicillin + Gentamicin

a. 2nd/3rd gen cephalosporin + extended macrolide

Treatment for meningitis in elderly.

a. 2nd/3rd gen cephalosporin + extended macrolide

b. 3rd gen cephalosporin

c. High dose penicillin

d. Ampicillin + Gentamicin

b. 3rd gen cephalosporin

The only 2nd generation cephalosporin that can pass the blood brain barrier.

a. Cefotetan

b. Cefoxetin

c. Cefuroxime

d. Cefaclor

c. Cefuroxime

Treatment for otitis media caused by S. pneumoniae.

a. 2nd/3rd gen cephalosporin + extended macrolide

b. 3rd gen cephalosporin

c. High dose penicillin

d. Ampicillin + Gentamicin

c. High dose penicillin

Vaccine for S. pneumoniae

a. PCV13

b. PPV23

c. Both

d. None of these

c. Both

Prevnar.

a. PCV13

b. PPV23

c. Both

d. None of these

a. PCV13

Pneumo23.

a. PCV13

b. PPV23

c. Both

d. None of these

b. PPV23

Streptococcus mutans which is normal flora of the mouth.

a. Streptococcus pyogenes

b. Streptococcus agalactiae

c. Streptococcus pneumoniae

d. Viridans streptococcus

e. Enterococcus

f. Nonenterococcus

d. Viridans streptococcus

Overgrowth may cause dental caries.

a. Streptococcus pyogenes

b. Streptococcus agalactiae

c. Streptococcus pneumoniae

d. Viridans streptococcus

e. Enterococcus

f. Nonenterococcus

d. Viridans streptococcus

May present with subacute bacterial endocarditis in patients with prosthetic heart valves.

a. Streptococcus pyogenes

b. Streptococcus agalactiae

c. Streptococcus pneumoniae

d. Viridans streptococcus

e. Enterococcus

f. Nonenterococcus

d. Viridans streptococcus

Normal flora of the GIT which may lead nosocomial infections.

a. Streptococcus pyogenes

b. Streptococcus agalactiae

c. Streptococcus pneumoniae

d. Viridans streptococcus

e. Enterococcus

f. Nonenterococcus

e. Enterococcus

Enterococcus specie:

a. E. faecalis

b. E. faecium

c. Both

d. None of these

c. Both

Primary treatment for enterococcus infection.

a. Vancomycin

b. Linezolid

c. Streptogramin

d. a and b

e. b and c.

f. All

a. Vancomycin

Treatment for VRE infection.

a. Vancomycin

b. Linezolid

c. Streptogramin

d. a and b

e. b and c

f. All

e. b and c

Linezolid

Streptogramin

Pathogen that are highly associated with antimicrobial resistance.

I. Enterococcus faecium

II. Staphylococcus aureus

III. Klebsiella pneumoniae

IV. Actinobacter baumanii

V. Pseudomonas aeruginosa

VI. Enterobacter species: E. coli

a. I, II, III, IV, V, VI

b. I, II, III, IV, V

c. II, III, IV, V

d. II, III, IV, V, VI

e. I, II, III

a. I, II, III, IV, V, VI

Streptococcus bovis.

a. Streptococcus pyogenes

b. Streptococcus agalactiae

c. Streptococcus pneumoniae

d. Viridans streptococcus

e. Enterococcus

f. Nonenterococcus

f. Nonenterococcus

Can cause marantic endocarditis in patient with abdominal cancer.

a. Streptococcus pyogenes

b. Streptococcus agalactiae

c. Streptococcus pneumoniae

d. Streptococcus mutans

e. Enterococcus faecium

f. Streptococcus bovis

f. Streptococcus bovis