front 1 1) All of the following are normal microbiota of the skin EXCEPT A) Streptococcus. B) Micrococcus. C) Staphylococcus. | back 1 A |
front 2 2) 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? A) chickenpox B) measles C) fever blisters | back 2 A |
front 3 3) Which of the following is NOT true of acne? A) It can be treated by eliminating fatty foods from the diet. B) It is often due to the action of Propionibacterium. C) Drugs that inhibit sebum formation are useful in treating inflammatory acne. | back 3 A |
front 4 4) Warts are caused by A) papillomavirus. B) poxvirus. C) herpesvirus. | back 4 A |
front 5 5) All of the following are characteristic of Pseudomonas aeruginosa EXCEPT A) gram-positive cell wall. B) resistance to many types of disinfectants and antibiotics. C) growth in moist environments. | back 5 A |
front 6 6) Koplik spots are a diagnostic indicator of A) chickenpox. B) smallpox. C) fifth disease. D) rubella. E) measles. | back 6 E |
front 7 7) All of the following are transmitted via the respiratory route EXCEPT A) smallpox. B) chickenpox. C) rubella. D) tinea. | back 7 D |
front 8 8) All of the following are protective factors of the skin and its secretions EXCEPT A) keratin. B) tightly packed cells. C) lysozyme production. D) pyocyanin production. | back 8 D |
front 9 9) Thrush and vaginitis are caused by A) herpesvirus. B) Chlamydia trachomatis. C) Candida albicans. | back 9 C |
front 10 10) The greatest single cause of blindness in the world is A) neonatal gonorrheal ophthalmia. B) keratoconjunctivitis. C) trachoma. | back 10 C |
front 11 11) All of the following are characteristic of the Group A beta-hemolytic streptococci EXCEPT A) methicillin resistance. B) M proteins. C) the ability to damage cell membranes. | back 11 A |
front 12 12) Which of the following cause(s) ringworm? A) Microsporum B) Epidermophyton C) Mycobacterium D) Microsporum and Epidermophyton | back 12 D |
front 13 13) 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 genital herpes. D) when the mother has gonorrhea. E) as a routine precaution. | back 13 E |
front 14 14) A possible complication of chickenpox is A) encephalitis. B) fever blisters. C) subacute sclerosing panencephalitis. | back 14 A |
front 15 15) Which of the following is a subcutaneous mycosis? A) tinea capitis. B) sporotrichosis. C) erysipelas. | back 15 B |
front 16 16) Which region of the skin supports the largest bacterial population? A) armpits B) scalp C) forearms | back 16 A |
front 17 17) Staphylococcus aureus is responsible for all of the following EXCEPT A) pimples. B) sties. C) boils. D) carbuncles. E) acne. | back 17 E |
front 18 18) Exfoliative toxin is responsible for A) otitis externa. B) impetigo. C) fever blisters. D) scalded skin syndrome. | back 18 D |
front 19 19) All of the following are causative agents of conjunctivitis EXCEPT A) Chlamydia trachomatis. B) herpes simplex. C) adenovirus. | back 19 B |
front 20 20) In which of the following respects is measles similar to German measles (rubella)? A) They have a similar type of rash. B) They are caused by the same virus. C) Encephalitis is a possible complication. D) Congenital complications may occur. E) They can be controlled by vaccination. | back 20 E |
front 21 21) Why is vaccination for rubella recommended? A) It has a high mortality rate in school-age children. B) Death from secondary infections is common. C) There is a high incidence of congenital infections and birth defects. | back 21 C |
front 22 22) Which of the following statements about congenital rubella syndrome is FALSE? A) It is contracted during the first trimester of pregnancy. B) It may be fatal to the unborn child. C) It may result in deafness, blindness, and mental retardation. D) It does not occur with subclinical infections. | back 22 D |
front 23 23) Which of the following are incorrectly matched? A) varicella-zoster — chickenpox B) parvovirus — fifth disease C) HHV-6 — roseola D) herpes zoster — shingles E) poxvirus — fever blisters | back 23 E |
front 24 24) Which of the following is NOT caused by HSV-1? A) cold sores B) canker sores C) herpes gladiatorum | back 24 B |
front 25 25) Which of the following statements about Reye syndrome is FALSE? A) It is associated with aspirin use. B) It is a complication that may occur in chickenpox infection. C) It mostly affects older adults. | back 25 C |
front 26 26) The eradication of smallpox was possible because A) it was a relatively mild disease. B) insect vectors were eliminated. C) there are no animal reservoirs of the virus. | back 26 C |
front 27 27) Which of the following is used to treat herpetic keratitis? A) penicillin B) sulfonamide C) trifluridine | back 27 C |
front 28 28) Which of the following is used to treat shingles? A) penicillin B) sulfonamide C) trifluridine D) fungicide E) acyclovir | back 28 E |
front 29 29) Which of the following is used to treat sporotrichosis? A) penicillin B) sulfonamide C) trifluridine D) oral potassium iodide | back 29 D |
front 30 30) Which of the following is used to treat candidiasis of the skin or mucous membranes? A) penicillin B) sulfonamide C) trifluridine D) miconazole | back 30 D |
front 31 31) Scabies is a skin disease caused by a A) slow virus. B) protozoan. C) mite. | back 31 C |
front 32 32) Scabies is transmitted by A) fomites. B) food. C) water. | back 32 A |
front 33 33) 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. | back 33 C |
front 34 34) Which of the following leads to all the others? A) toxemia B) scalded skin syndrome C) staphylococcal infection | back 34 C |
front 35 35) Buruli ulcer is caused by A) gram-positive bacteria. B) acid-fast bacteria. C) a fungus. | back 35 B |
front 36 36) The patient has a papular rash. Microscopic examination of skin scrapings reveals small eight-legged animals. The etiology is A) Candida. B) Microsporum. C) Pseudomonas aeruginosa. D) Staphylococcus aureus. E) Sarcoptes. | back 36 E |
front 37 37) The patient has vesicles and scabs over her forehead. Microscopic examination of skin scrapings shows gram-positive cocci in clusters. The etiology is A) Candida. B) Microsporum. C) Pseudomonas aeruginosa. D) Staphylococcus aureus. | back 37 D |
front 38 38) 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. | back 38 B |
front 39 39) 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 A) Candida albicans. B) herpes simplex virus. C) Staphylococcus aureus. D) Streptococcus pyogenes. E) varicella-zoster virus. | back 39 E |
front 40 40) 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 A) Candida albicans. B) herpes simplex virus. C) Staphylococcus aureus. | back 40 A |
front 41 41) Which of the following is incorrectly matched? A) Haemophilus influenzae — pinkeye B) Chlamydia trachomatis — trachoma C) Neisseria gonorrhea — opthalmia neonatorum D) Acanthamoeba — keratitis E) Pseudomonas — inclusion conjunctivitis | back 41 E |
front 42 42) 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) an acid-fast reaction. B) a coagulase reaction. C) conidiospores. | back 42 B |
front 43 43) Which of the following pairs is mismatched? A) chickenpox — poxvirus B) conjunctivitis — Chlamydia trachomatis C) keratitis — Acanthamoeba | back 43 A |
front 44 44) 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 A) Acanthamoeba. B) herpes simplex virus. C) Propionibacterium acnes. | back 44 C |
front 45 45) Which of the following is likely to spread MRSA among athletes? A) physical contact B) whirlpool baths C) taping gels D) shared equipment E) All of the answers are correct. | back 45 E |
front 46 46) Inflammation of the thin clear membrane lining the eyelid and eye is properly termed A) keratititis B) trachoma C) ophthalmia neonatorum D) conjunctivitis | back 46 D |
front 47 1) Pathogens of the skin often enter via hair follicles and ducts of the sweat glands. | back 47 TRUE |
front 48 2) The majority of the staphylococci isolated from human skin are coagulase-positive. | back 48 FALSE |
front 49 3) The abbreviation "GAS" refers to pathogenic strains of Staphylococcus. | back 49 FALSE |
front 50 4) Haemophilus influenzae is the most common bacterial cause of pinkeye. | back 50 TRUE |
front 51 5) Candidiasis often occurs following antibiotic therapy for bacterial infections. | back 51 TRUE |
front 52 6) Infection with Pediculus humanus is called scabies. | back 52 FALSE |
front 53 7) Blue-green pus is characteristic of Pseudomonas wound infections. | back 53 TRUE |
front 54 8) The normal flora of the skin is predominantly gram-negative rods. | back 54 FALSE |
front 55 9) Acanthamoeba infections are usually transmitted via insects. | back 55 FALSE |
front 56 10) The varicella-zoster virus is the causative agent of chickenpox and shingles. | back 56 TRUE |