All of the following are normal microbiota of the skin EXCEPT
Streptococcus.
An eight-year-old girl has scabs and pus-filled vesicles on her face and throat. Three weeks earlier she had visited her grandmother, who had shingles. What infection does the eight-year-old have?
chickenpox
Which of the following is NOT true of acne?
It can be treated by eliminating fatty foods from the diet.
Warts are caused by
papillomavirus.
All of the following are characteristic of Pseudomonas aeruginosa EXCEPT
gram-positive cell wall.
Koplik spots are a diagnostic indicator of
measles.
All of the following are transmitted via the respiratory route EXCEPT
tinea.
All of the following are protective factors of the skin and its secretions EXCEPT
pyocyanin production.
Thrush and vaginitis are caused by
Candida albicans.
The greatest single cause of blindness in the world is
trachoma.
All of the following are characteristic of the Group A beta-hemolytic streptococci EXCEPT
methicillin resistance.
Which of the following cause(s) ringworm?
Microsporum and Epidermophyton
Newborns' eyes are treated with an antibiotic
as a routine precaution.
A possible complication of chickenpox is
encephalitis.
Which of the following is a subcutaneous mycosis?
sporotrichosis
Which region of the skin supports the largest bacterial population?
armpits
Staphylococcus aureus is responsible for all of the following EXCEPT
acne.
Exfoliative toxin is responsible for
scalded skin syndrome.
All of the following are causative agents of conjunctivitis EXCEPT
herpes simplex.
In which of the following respects is measles similar to German measles (rubella)?
They can be controlled by vaccination
Why is vaccination for rubella recommended?
There is a high incidence of congenital infections and birth defects.
Which of the following statements about congenital rubella syndrome is FALSE?
It does not occur with subclinical infections.
Which of the following are incorrectly matched?
poxvirus – fever blisters
Which of the following is NOT caused by HSV-1?
canker sores
Which of the following statements about Reye syndrome is FALSE?
It mostly affects older adults.
The eradication of smallpox was possible because
there are no animal reservoirs of the virus.
Which of the following is used to treat herpetic keratitis?
trifluridine
Which of the following is used to treat shingles?
acyclovir
Which of the following is used to treat sporotrichosis?
oral potassium iodide
Which of the following is used to treat candidiasis of the skin or mucous membranes?
miconazole
Scabies is a skin disease caused by a
mite.
Scabies is transmitted by
fomites.
A patient has pus-filled vesicles and scabs on her face, throat, and lower back. She most likely has
chickenpox.
Furuncles, toxic shock syndrome, and scalded skin syndrome all are caused by
Staphylococcus aureus.
Buruli ulcer is caused by
acid-fast bacteria.
The patient has a papular rash. Microscopic examination of skin scrapings reveals small eight-legged animals. The etiology is
Sarcoptes.
The patient has vesicles and scabs over her forehead. Microscopic examination of skin scrapings shows gram-positive cocci in clusters. The etiology is
Staphylococcus aureus.
The patient has scaling skin on his fingers. Conidiospores are seen in microscopic examination of skin scrapings. The etiology is
Microsporum.
A 45-year-old man has pus-filled vesicles 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
varicella-zoster virus.
A 35-year-old woman has a red, raised rash on the inside of her thighs. Gram-stained skin scrapings show large budding cells with pseudohyphae. The infection is caused by
Candida albicans.
Which of the following is incorrectly matched?
Pseudomonas – inclusion conjunctivitis
Assume that your lab partner swabs the side of his face and uses the swab to inoculate a nutrient agar plate. The next day, he performs a Gram stain on the colonies. They are gram-positive cocci. You advise him that he should next look for
a coagulase reaction.
Which of the following pairs is mismatched?
chickenpox – poxvirus
A 17-year-old boy has pus-filled cysts on his face and upper back. Microscopic examination reveals gram-positive rods. This infection is caused by
Propionibacterium acnes.
Which of the following is likely to spread MRSA among athletes?
All of the answers are correct
Inflammation of the thin clear membrane lining the eyelid and eye is properly termed
conjunctivitis.
You are examining a scraping of an infected cornea under the brightfield microscope and see eukaryotic cells. This is probably a case of
Acanthomoeba keratitis.
Which disease commonly leads to blindness in parts of the world but can be largely controlled through sanitary practices and health education?
Trachoma
Which infectious agent causes conjunctivitis and may be contracted from non-chlorinated swimming pools?
Chlamydia trachomatis
A newborn infant develops a whitish overgrowth on the tongue and inner lips. This newborn is suffering from an infection with
Candida albicans