Microbiology Chapter 21 – Flashcards

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question

Which of the following is not normal microbiota of the skin?

A streptoccoccus

Bpityrosporum

C staphylococcus

D propionibacterium

D corynebacterium

answer
A Streptococcus
question

An 8 yr old girls has scabs and pus-filled vesicle on her face and throat.  Three weeks earlier she had visited her grandmother who had shingles.  What infection does th 8 yr old have?

A chicken pox

B measles

C fever blisters

D scabies

E rubella

answer
A chicken pox
question

Which of the following pairs is mismatched?

A staphylococcus aureus - impetigo

B streptococcus pyogense - erysipelas

C propionibacterium acnes - pimpels

Pseudomonas aeruginosa - otis externa

E str. pyogenes -toxic shock syndrome

answer
C propionibacterium acnes - pimples
question

The etiologic agent of warts is

A papovirus

B Poxvirus

Cherpesvirus

Dparvoovirus

E. Staphylococcus aureus

answer
A papovirus
question

Which of the following is not a characteristic of pseudomonas aerugniosa?

A gram positive cell wall

B oxidative metabolism

C oxidase positive

D produce pyocyanin

E rod shaped

answer
A gram positive cell wall
question

Which of the following pairs is mismatched?

A pustular rash - smallpox

B koplik spots - rubella

C papular rash - measles

D Vesicular rash- chickenpos

E macular rash - fifth disease

answer
B Koplik spots - rubella
question

Which of the following is not transmitted by the respiratory route?

A smallpox

B chickenpox

C Rubella

D trichophyton

E measles

 

answer
D trichophyton
question

Which of these is not caused by the herpesvirus?

A chickenpox

B shingles

C keratitis

D smallpox

E Roseola

answer
D smallpox
question

Thrush and vaginitis are caused by

A herpesvirus

B chlamydia trachomatis

C candida albicans

D staphylococcus aureus

E streptococcus pyogenes

answer
C Candida albicans
question

The greatest single cause of blindness in the world is

A neonatal gonorrheal ophthalmia

B keratoconjunctivitis

C trachoma

D inclusion conjunctivitis

E pinkeye

answer
C trachoma
question

Which of the following can be treated with topical chemotherapeutic agents?

A herpes gladiatorium

B sporotrichosis

C dermatomycosis

D rubella

E shingles

answer
C Dermatomycosis
question

Which of the following is not a cause of ringworm?

A Microsporum

B trichophyton

C tinea capitis

D epidermaphyton

E All of the above

answer
C tinea capitis
question

Newborns eyes are treated with an antibiotic

A when Neisseria gonorrhoeae is isolated from the eyes

B when the mother is blind

C when the mother has gental herpes

D when the mother has gonorrhea

E. always

answer
E always
question

A possible complication of herpetic keratitis is 

A encephalitis

B fever blisters

C subacute sclerosing panencephalitis

D congenital rubella syndrome

E macular rash

answer
A encephalitis
question

Which of the following is sensitive to penicillin?

A chlamydia

B herpesvirus

D dandida

D streptococcus

E pseudomonas

answer
D streptococcus
question

Which region of the skin supports the largest bacterial population?

A axilla

B scalp

C forearms

D legs

E all are equal

answer
A Axilla
question

Which infection is not caused by Stphylococcus aureus?

A pimples

B sty

C furuncle

D carbuncle

E acne

answer
E acne
question

Which of the following is not a characteristic used to indentify Streptococcus pyogenes?

A coagulase positive

B group a cell wall antigen

C group m protiens

D beta hemolytic

E cocci

answer
A coagulase positive
question

Which of the following is not a causative agent of conjuctivitis?

A chlamydia trachomatis

B herpes simplex

C adenovirus

D neisseria gonorrhoeae

E haemophilus influenzae

answer
D Neisseria gonorrhoeae
question

In which of the following respects is measles similar to German measles (rubella)?

A rash

B etiologic agent

C encephalitis as a complication

D congential complications

E in name only

answer
E in name only
question

Vaccination for rubella

A is not necessary because the disease is mild

B in not necessary if a person has had an infection

C is recommended only for pregnant women

D is recommended for newbors to prevent congenital disease

E has reduced incidence of rubella

answer
E has reduced incidence of rubella
question

Which of the following statements about congential rebella syndrome is false?

 

A it is contracted in utero

B it may be fatal

C it may result in deafness, blindness, and mental retardation

D it doesn't occur with subclinical infections

E alll of the above are true;

answer
D it doesn't occure with subclinical infections
question

The etiologic agent of chickenpox is 

A herpes simplex

B herpes zoster

C HHV-6

D parvovirus

E poxvirus

answer
B herpes zoster
question

The etiologic agent of fifth disease is

A herpes simplex

B herpes zoster

C HHV-6

D parvovirus

E poxvirus

answer
D parvovirus
question

The etiologic agent of roseola is 

 

A herpes simplex

B herpes zoster

C HHV-6

D parvovirus

E poxvirus

answer
C HHV -6
question

The etiologic agent of fever blisters is 

A herpes simplex

B herpes zoster

C HHV-6

D parvovirus

E poxvirus

answer
A herpes simplex
question

Which of the following is used to treat epidemic herpetic keratitis?

A penicillin

B sulfonamide

C trifluridine

D fungicide

E none of the above

 

answer
C trifluridine
question

Which of the following is used to treat smallpox?

A penicillin

B sulfonamide

C trifluridine

D fungicide

E none of the above

answer
E. none of the above
question

Which of the following is used to treat sporotrichosis?

 

A penicillin

B sulfonamide

C trifluridine

D fungicide

E none of the above

answer
D fungicide
question

Which of the following is used to treat candidiasis?

 

A penicillin

B sulfonamide

C trifluridine

D fungicide

E none of the above

answer
D fungicide
question

Scabies is a skin disease caused by 

A a slow virus

B a protozoan

C a mite

D a bacterium

E a prion

answer
C a mite
question

Scabies is transmitted by 

A fomites

B food

C water

D soil

E B and C

 

answer
A fomites
question

A patient has pus-filled vesicles and scabs on her face, throat, and lower back.  She most likely has

A measles

B mumps

C chickenpox

D rubella

E smallpox

answer
C chickenpox
question

Which of the following leads to all others

A toxemia

B scalded skin syndrom

C staphylococcal infection

D TSST-1

E Sudden drop in blood pressure

answer
C staphylococcal infection
question

Buruli ulcer is caused by

A direct contact

B acid-fast bacteria

C a fungus

D a virus

E a mite

 

answer
B acid fast bacteria
question

The patient has a papular rash.  Microscopic axamination of skin scraping reveals small 8- legged animals  the etiology is 

A candida

B microsporum

C pseudomonas aeruginosa

D staphylococcus aureus

E sarcoptes

answer
E. Sarcoptes
question

The patient has vesicles and scabs over her forehead.  Microscopic examination of skin scrapings show gram psoitive cocci in clusters.  The etiology is

A candida

B microsporum

C pseudomonas aeruginosa

D staphylococcus aureus

E sarcoptes

answer
D stapphylococcus aureus
question

The patient has scaling skin on his fingers.  Conidiospores are seen in microscopic examination of skin scrapings.  The etiology is 

A candida

B microsporum

C pseudomonas aeruginosa

D staphylococcus aureus

E mycobacterium ulcerans

answer
B microsporum
question

A 45 yr old man has pus filled vesicle distributed over his back in the upper right quadrant, over his right shoulder, and upper right quadrant of his chest.  His symptoms are most likely due to 

A candida albicans

B herpes simplex virus

C staphylococcus aureus

D streptococcus pyogenes

E varicell zoster virus

answer
E varicella zoster virus
question

A 35 yr old woman has a red, raised rash on the inside of her thighs.  Gram stained skin scraping show large budding cells with pseudohyphae.  The infection is caused by

A candida albicans

B herpes simplex virus

C staphylococcus aureus

D streptococcus pyogenes

E varicell zoster virus

 

answer
A candida albicans
question

Cytoplasmic inclusions were observed in a fetus that died in utero after 6 month gestation.  The probable cause of the fteus death was 

A fifth disease

B herpes simplex

C measles

D staphylococcus aureus

E streptococcus pyogenes

 

answer
A fifth disease
question

Assume that your lab partner swabs the side of his face and used the swab to inoculate a nutrient agar plate.  The next day he performs a gram stain on the colonies.  They are gram positice cocci.  You advise him that he should look for 

A acid fast reaction

B coagulase reaction

C condiospores

D pseudohyphae

E pseudopods

 

answer
B coagulase reaction
question

Which of the following pairs is mismatched?

 

A chickenpox-poxvirus

B conjunctivitis -chlamydia trachomatis

C keratitis - acanthamoeba

D infected tissue fluoresces - dermatomycosis

E buruli ulcer - mycobaterium

answer
A chickenpox- poxvirus
question

A 17 yr old boy has pus filled cysts on his face and upper back.  Microscopic examination reveals gram positive rods.  This infection is caused by

A acanthamoeba

B herpes simplex virus

C propionibacterium acnes

D staphylococcus aureus

E streptococcus pyogenes

answer
C propionibacterium acnes
question

Which of the following is not likely to spread MRSA among athletes?

A physical contact

B whirlpool baths

C taping gels

D antibiotic resistance

E shared equipment

answer
D antibiotic resistance
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