Which one of the following causes a disease characterized by the catarrhal, paroxysmal, and convalescent stages?
A) Bordetella pertussis
B) Corynebacterium...
All of the following are true of the common cold EXCEPT
All of the following are true of the common cold EXCEPT
A) it is caused by rhinoviruses and coronaviruses.
B) it is transmitted via aerosols and contact.
C)...
Which of the following diseases is NOT correctly matched to its reservoir?
Which of the following diseases is NOT correctly matched to its reservoir?
A) tuberculosis — cattle
B) histoplasmosis — soil
C) psittacosis — parakeets
D)...
Which of the following causes opportunistic infections in AIDS patients?
Which of the following causes opportunistic infections in AIDS patients?
A) Pneumocystis
B) Aspergillus
C) Rhizopus
D) Mucor
E) All of the answers...
Which of the following does NOT cause otitis media?
Which of the following does NOT cause otitis media?
A) Streptococcus pneumoniae
B) Haemophilus influenzae
C) Streptococcus pyogenes
D) Moraxella catarrhalis
E)...
Which of the following is mismatched?
Which of the following is mismatched?
A) epiglottitis — Haemophilus
B) Q fever — Rickettsia
C) psittacosis — Chlamydia
D) whooping cough — Bordetella
E)...
Which of the following requires treatment with both antibiotics and antitoxins?
Which of the following requires treatment with both antibiotics and antitoxins?
A) diphtheria
B) tuberculosis
C) whooping cough
D) scarlet fever
E)...
Which of the following diseases has a cutaneous form, especially in individuals over 30 years of age?
Which of the following diseases has a cutaneous form, especially in individuals over 30 years of age?
A) coccidioidomycosis
B) diphtheria
C) legionellosis
D)...
Which of the following diseases is NOT correctly matched to its vaccine?
Which of the following diseases is NOT correctly matched to its vaccine?
A) tuberculosis — toxoid
B) whooping cough — heat-killed bacteria
C) diphtheria...
All of the following can lead to a positive tuberculin skin test EXCEPT
All of the following can lead to a positive tuberculin skin test EXCEPT
A) vaccination.
B) current tuberculosis infection.
C) previous tuberculosis...
Which of the following microorganisms causes symptoms most like tuberculosis?
Which of the following microorganisms causes symptoms most like tuberculosis?
A) Histoplasma
B) Coccidioides
C) Legionella
D) Mycoplasma
E) Influenza...
Which of the following is mismatched?
Which of the following is mismatched?
A) Corynebacterium — gram-positive rod
B) Mycobacterium — acid-fast rod
C) Mycoplasma — gram-positive pleomorphic...
Which of the following is NOT a typical symptom of influenza?
Which of the following is NOT a typical symptom of influenza?
A) fever
B) chills
C) headache
D) diarrhea
E) muscle aches
Answer: diarrhe...
Which of the following statements about mycoplasmal pneumonia is TRUE?
Which of the following statements about mycoplasmal pneumonia is TRUE?
A) The causative agent is a virus.
B) The symptoms resemble pneumococcal pneumonia.
C)...
Members of the group A streptococci (GAS) cause all of the following EXCEPT
Members of the group A streptococci (GAS) cause all of the following EXCEPT
A) strep throat.
B) scarlet fever.
C) rheumatic fever.
D) pharyngitis.
E)...
Which of the following is mismatched?
Which of the following is mismatched?
A) pharyngitis — sore throat
B) laryngitis — voice loss
C) epiglottitis — sore throat
D) sinusitis — headache...
The lower respiratory tract is protected by all of the following EXCEPT
The lower respiratory tract is protected by all of the following EXCEPT
A) competition with the normal flora of the lungs.
B) IgA antibodies.
C) mucous...
Brucella bacteria are considered a potential agent of bioterrorism because
Brucella bacteria are considered a potential agent of bioterrorism because
A) they are not susceptible to antibiotics.
B) they easily become airborne.
C)...
Which of the following statements about group B streptococci is FALSE?
Which of the following statements about group B streptococci is FALSE?
A) They are present in healthy carriers.
B) They cause gram-positive sepsis.
C)...
A 62-year-old man was hospitalized with an eight-day history of fever, chills, sweats, and vomiting. His temperature on admission was 40°C (104°F). A routine peripheral blood smear revealed ring-shaped bodies in the RBCs. What treatment would you prescribe?
A 62-year-old man was hospitalized with an eight-day history of fever, chills, sweats, and vomiting. His temperature on admission was 40°C (104°F)....
Which of the following is NOT controlled by a mosquito eradication program?
Which of the following is NOT controlled by a mosquito eradication program?
A) chikungunya fever
B) yellow fever
C) dengue fever
D) schistosomiasis
E)...
Which of the following is evidence that the arthritis afflicting children in Lyme, Connecticut, was due to bacterial infection?
Which of the following is evidence that the arthritis afflicting children in Lyme, Connecticut, was due to bacterial infection?
A) treatable with...
You advise your pregnant friend to not adopt a new kitten from her neighbor because she could contract
You advise your pregnant friend to not adopt a new kitten from her neighbor because she could contract
A) plague.
B) Brukitt's Lymphoma.
C) toxoplasmosis.
D)...
Scrapings from a patient's rash reveal cercariae. The disease is most likely
Scrapings from a patient's rash reveal cercariae. The disease is most likely
A) Lyme disease.
B) Rocky Mountain spotted fever.
C) relapsing fever.
D)...
Which of the following pairs is NOT correctly matched for Gram reaction?
Which of the following pairs is NOT correctly matched for Gram reaction?
A) Lyme disease — gram-negative
B) tularemia — gram-negative
C) anthrax —...
A patient complains of fever, severe muscle and joint pain, and a rash. The patient reports returning from a Caribbean vacation one week ago. Which of the following do you suspect?
A patient complains of fever, severe muscle and joint pain, and a rash. The patient reports returning from a Caribbean vacation one week ago. Which...
Which of the following leads to all the others?
Which of the following leads to all the others?
A) subcutaneous hemorrhaging
B) presence of antirickettsial antibodies
C) blockage of capillaries
D)...
Epstein-Barr virus has been implicated in all of the following EXCEPT
Epstein-Barr virus has been implicated in all of the following EXCEPT
A) endocarditis.
B) infectious mononucleosis.
C) Burkitt's lymphoma.
D) nasopharyngeal...
Which of the following produces a permanent carrier state following infection?
Which of the following produces a permanent carrier state following infection?
A) Borrelia
B) cytomegalovirus
C) Spirillum
D) Toxoplasma
E) Yersi...
Which of the following is NOT treated with antibiotics?
Which of the following is NOT treated with antibiotics?
A) plague
B) tularemia
C) Lyme disease
D) Ebola
E) anthrax
Answer: ebol...
Which of the following is the same for both relapsing fever and undulant fever?
Which of the following is the same for both relapsing fever and undulant fever?
A) rising and falling body temperature
B) mode of transmission
C)...
Which of the following CANNOT be transmitted to humans from domestic cats?
Which of the following CANNOT be transmitted to humans from domestic cats?
A) toxoplasmosis
B) plague
C) Chagas' disease
D) Bartonella
E) None of...
Which of the following pairs is mismatched?
Which of the following pairs is mismatched?
A) cat-scratch disease — malignant pustule developing into septicemia
B) brucellosis — a temperature of...
Arthropods can serve as a reservoir for all of the following diseases EXCEPT
Arthropods can serve as a reservoir for all of the following diseases EXCEPT
A) plague.
B) brucellosis.
C) epidemic typhus.
D) yellow fever.
E) m...
Which of the following is NOT a zoonosis?
Which of the following is NOT a zoonosis?
A) puerperal sepsis
B) Hantavirus infection
C) anthrax
D) brucellosis
E) tularemia
Answer: puerperal...
A predisposing factor for infection by Clostridium perfringens is
A predisposing factor for infection by Clostridium perfringens is
A) gangrene.
B) burns.
C) debridement.
D) hyperbaric treatment.
E) an infected ...
Which of the following pairs regarding the epidemiology of malaria is mismatched?
Which of the following pairs regarding the epidemiology of malaria is mismatched?
A) vector — Ixodes
B) etiology — Plasmodium
C) found in liver —...
A characteristic symptom of plague is
A characteristic symptom of plague is
A) small red spots on the skin.
B) swollen lymph nodes.
C) rose-colored spots.
D) recurrent fever.
E) nausea...
Human-to-human transmission of plague is usually by
Human-to-human transmission of plague is usually by
A) rat flea.
B) dog flea.
C) the respiratory route.
D) wounds.
E) unsanitary conditions
Answer: the...
A patient returning from an extended trip into Mexico has the following symptoms: a papule at the site of a previous bug bite and enlarged lymph nodes. Microscopic examination of the papule reveals nucleated cells in white blood cells. The patient most likely has
A patient returning from an extended trip into Mexico has the following symptoms: a papule at the site of a previous bug bite and enlarged lymph nodes....
Which of the following pairs is mismatched?
Which of the following pairs is mismatched?
A) Borrelia — relapsing fever
B) Yersinia — plague
C) Streptobacillus — rat-bite fever
D) Pasteurella...
Which of the following can be transmitted from an infected mother to her fetus across the placenta?
Which of the following can be transmitted from an infected mother to her fetus across the placenta?
A) Borrelia
B) cytomegalovirus
C) Spirillum
D)...
Which of the following pairs is mismatched?
Which of the following pairs is mismatched?
A) Rickettsia — intracellular parasite
B) Brucella — gram-negative aerobic rods
C) Francisella — gram-positive...
Which of the following statements about rheumatic fever is FALSE?
Which of the following statements about rheumatic fever is FALSE?
A) It is a complication of a group A beta-hemolytic streptococcal infection.
B)...
Which of the following statements about schistosomiasis is FALSE?
Which of the following statements about schistosomiasis is FALSE?
A) The cercariae penetrate human skin.
B) They symptoms are caused by immune reactions...
Which of the following statements about puerperal sepsis is FALSE?
Which of the following statements about puerperal sepsis is FALSE?
A) It is transmitted from mother to fetus.
B) It is caused by health care personnel.
C)...
A patient presents with inflammation of the heart valves, fever, malaise, and subcutaneous nodules at joints. The recommended treatment is
A patient presents with inflammation of the heart valves, fever, malaise, and subcutaneous nodules at joints. The recommended treatment is
A) supportive...
Which of the following is NOT caused by a bacterium?
Which of the following is NOT caused by a bacterium?
A) epidemic typhus
B) tickborne typhus
C) malaria
D) plague
E) relapsing fever
Answer:&nbs...
Which of the following pairs does NOT apply to Chagas' disease?
Which of the following pairs does NOT apply to Chagas' disease?
A) causative agent — Trypanosoma cruzi
B) vector — kissing bug
C) reservoir — rodents
D)...
Which of the following statements about toxoplasmosis is FALSE?
Which of the following statements about toxoplasmosis is FALSE?
A) It is caused by a protozoan.
B) The reservoir is cats.
C) It is transmitted by...
Unsanitary and crowded conditions increase the incidence of all of the following diseases EXCEPT
Unsanitary and crowded conditions increase the incidence of all of the following diseases EXCEPT
A) plague.
B) epidemic typhus.
C) endemic murine...
Which of the following pairs is mismatched?
Which of the following pairs is mismatched?
A) malaria — Anopheles (mosquito)
B) dengue — Aedes (mosquito)
C) epidemic typhus — Pediculus (louse)
D)...
Which of the following bacterial infections CANNOT be transmitted by dog or cat bites?
Which of the following bacterial infections CANNOT be transmitted by dog or cat bites?
A) Pasteurella multocida
B) Streptobacillus
C) Bartonella henselae
D)...
Which of the following is NOT a characteristic of Bacillus anthracis?
Which of the following is NOT a characteristic of Bacillus anthracis?
A) is aerobic
B) is gram-positive
C) forms endospores
D) found in soil
E) produces...
Which of the following is NOT transmitted in raw milk?
Which of the following is NOT transmitted in raw milk?
A) toxoplasmosis
B) anthrax
C) brucellosis
D) listeriosis
E) All of these can be transmitted...
Which of the following is a symptom of brucellosis?
Which of the following is a symptom of brucellosis?
A) gastroenteritis
B) relapsing fever
C) undulant fever
D) pneumonia
E) jaundice
Answer: undulant...
Which of the following statements about tularemia is FALSE?
Which of the following statements about tularemia is FALSE?
A) It is caused by Francisella tularensis.
B) The most common reservoir is rabbits.
C)...
Which of the following is NOT typically treated with penicillin?
Which of the following is NOT typically treated with penicillin?
A) serious wounds at risk for gas gangrene
B) tularemia
C) patients at risk for rheumatic...
Which of the following is NOT a recognized form of anthrax?
Which of the following is NOT a recognized form of anthrax?
A) cutaneous
B) inhalationial
C) septic
D) gastrointestinal
E) None of the answers are...
Which of the following pairs is mismatched?
Which of the following pairs is mismatched?
A) subacute bacterial endocarditis — alpha-hemolytic streptococci
B) acute bacterial endocarditis — Staphylococcus...
Which of the following statements about sepsis is FALSE?
Which of the following statements about sepsis is FALSE?
A) Symptoms include fever and decreased blood pressure.
B) Lymphangitis may occur.
C) It...
All of the following are true of poliomyelitis EXCEPT
All of the following are true of poliomyelitis EXCEPT
A) infection is due to ingestion of contaminated water.
B) initial sites of viral replication...
All of the following are true of M. leprae EXCEPT
All of the following are true of M. leprae EXCEPT
A) it grows best at temperatures below 37° C.
B) it survives ingestion by macrophages.
C) it invades...
Which of the following vaccines can cause the disease it is designed to prevent?
Which of the following vaccines can cause the disease it is designed to prevent?
A) tetanus toxoid vaccine
B) oral polio vaccine
C) inactivated polio...
All of the following microorganisms can directly cause meningitis EXCEPT
All of the following microorganisms can directly cause meningitis EXCEPT
A) protozoa.
B) virus.
C) fungi.
D) bacteria.
E) mosquitoes
Answer:&nb...
Which of the following pairs is mismatched?
Which of the following pairs is mismatched?
A) tetanus — releases potent neurotoxin
B) botulism — stimulates transmission of nerve impulse
C) poliomyelitis...
A one-year-old boy was listless, irritable, and sleepy. Capsulated Gram-negative rods were cultured from his cerebrospinal fluid. His symptoms were caused by
A one-year-old boy was listless, irritable, and sleepy. Capsulated Gram-negative rods were cultured from his cerebrospinal fluid. His symptoms were...
All of the following are acquired by ingestion EXCEPT
All of the following are acquired by ingestion EXCEPT
A) botulism.
B) cryptococcosis.
C) listeriosis.
D) poliomyelitis.
E) Creutzfeldt-Jakob dise...
Patients with leprosy usually die from complications such as
Patients with leprosy usually die from complications such as
A) brain damage.
B) loss of nerve function.
C) tuberculosis.
D) pneumonia.
E) cardiac...
Vaccination is available for all the following EXCEPT
Vaccination is available for all the following EXCEPT
A) Haemophilus meningitis.
B) Neisseria meningitis.
C) tetanus.
D) rabies.
E) botulism.
A...
On October 5, a pet store sold a kitten that subsequently died. On October 22, rabies was diagnosed in the kitten. Between September 19 and October 23, the pet store had sold 34 kittens. Approximately 1000 people responded to health care providers following local media alerts. These people were given
On October 5, a pet store sold a kitten that subsequently died. On October 22, rabies was diagnosed in the kitten. Between September 19 and October...
On June 30, a 47-year-old man was hospitalized with dizziness, blurred vision, slurred speech, difficulty swallowing, and nausea. Examination revealed facial paralysis. He reported eating home-canned green beans and stew containing roast beef and potatoes 24 hours before onset of symptoms. The patient should be treated with
On June 30, a 47-year-old man was hospitalized with dizziness, blurred vision, slurred speech, difficulty swallowing, and nausea. Examination revealed...
Microscopic examination of cerebrospinal fluid reveals gram-positive rods. What is the organism?
Microscopic examination of cerebrospinal fluid reveals gram-positive rods. What is the organism?
A) Haemophilus
B) Listeria
C) Naegleria
D) Neisseria
E)...
Which of the following is/are a free-living amoeba that can cause encephalitis?
Which of the following is/are a free-living amoeba that can cause encephalitis?
A) Acanthamoeba
B) Naegleria
C) Entamoeba
D) Naegleria and Acanthamoeba
E)...
Which one of the following causes the most severe illness in humans, with a mortality rate of 30 percent?
Which one of the following causes the most severe illness in humans, with a mortality rate of 30 percent?
A) western equine encephalitis
B) eastern...
Which of the following is treated with antibiotics?
Which of the following is treated with antibiotics?
A) botulism
B) tetanus
C) streptococcal pneumonia
D) polio
E) All of these diseases can be successfully...
Diagnosis of rabies is confirmed by
Diagnosis of rabies is confirmed by
A) Gram stain.
B) direct fluorescent-antibody test.
C) patient's symptoms.
D) passive agglutination.
E) patient's...
Naegleria fowleri meningoencephalitis is commonly acquired by
Naegleria fowleri meningoencephalitis is commonly acquired by
A) exposure to bird droppings.
B) mosquito bites.
C) swimming in warm ponds or streams.
D)...
Arboviruses cause ________ and are transmitted by ________.
Arboviruses cause ________ and are transmitted by ________.
A) meningitis; bee stings
B) meningitis; mosquitoes
C) encephalitis; dog bites
D) encephalitis;...
A physician diagnoses a patient with lepromatous Hansen's disease. All of the following pertain to the patient EXCEPT
A physician diagnoses a patient with lepromatous Hansen's disease. All of the following pertain to the patient EXCEPT
A) disfiguring nodules form...
All of the following are true of chronic fatigue syndrome EXCEPT
All of the following are true of chronic fatigue syndrome EXCEPT
A) it may have a genetic component.
B) it is also known as myalgic encephalomyelitis.
C)...
An eight-year-old girl in rural Wisconsin has chills, headache, and fever and reports having been bitten by mosquitoes. How would you confirm your diagnosis of arboviral encephalitis?
An eight-year-old girl in rural Wisconsin has chills, headache, and fever and reports having been bitten by mosquitoes. How would you confirm your diagnosis...
Which of the following vaccine characteristics is (are) mismatched with their respective vaccine type?
Which of the following vaccine characteristics is (are) mismatched with their respective vaccine type?
A) 1, 3, and 5
B) 4, 5, and 6
C) 1 and 3 only
D)...
Each of the following is caused by prions EXCEPT
Each of the following is caused by prions EXCEPT
A) sheep scrapie.
B) kuru.
C) Creutzfeldt-Jakob disease.
D) bovine spongiform encephalopathy.
E)...
A 30-year-old woman was hospitalized after she experienced convulsions. On examination, she was alert and oriented and complained of a fever, headache, and stiff neck. Which of the following is most likely to provide rapid identification of the cause of her symptoms?
A 30-year-old woman was hospitalized after she experienced convulsions. On examination, she was alert and oriented and complained of a fever, headache,...
Which of the following pairs is mismatched?
Which of the following pairs is mismatched?
A) leprosy — direct contact
B) poliomyelitis — respiratory route
C) meningococcal meningitis — respiratory...
Encephalitis is more common in the summer months because
Encephalitis is more common in the summer months because
A) pathogens are present in swimming pools and lakes.
B) ameba populations increase in swimming...
A pathologist detects Negri bodies while examining a brain section taken at autopsy. What was the cause of death?
A pathologist detects Negri bodies while examining a brain section taken at autopsy. What was the cause of death?
A) rabies
B) meningococcal meningitis
C)...
All of the following are associated with botulism outbreaks EXCEPT
All of the following are associated with botulism outbreaks EXCEPT
A) type A toxin is most virulent.
B) endospores of C. botulinum have been recovered...
The prodromal (i.e. pre-acute disease stage) symptoms of bacterial meningitis is/are
The prodromal (i.e. pre-acute disease stage) symptoms of bacterial meningitis is/are
A) mild cold symptoms.
B) fever and headache.
C) stiff neck and...
The most common route of central nervous system invasion by pathogens is through
The most common route of central nervous system invasion by pathogens is through
A) the skin.
B) the circulatory system.
C) the gastrointestinal system.
D)...
Initial treatment for tetanus in a fully immunized person with a puncture wound is
Initial treatment for tetanus in a fully immunized person with a puncture wound is
A) tetanus toxoid.
B) tetanus immune globulin.
C) penicillin.
D)...
Initial treatment for tetanus in a fully immunized person with a puncture wound is
Initial treatment for tetanus in a fully immunized person with a puncture wound is
A) tetanus toxoid.
B) tetanus immune globulin.
C) penicillin.
D)...
Initial treatment for tetanus in an unimmunized person with a puncture wound is
Initial treatment for tetanus in an unimmunized person with a puncture wound is
A) tetanus toxoid.
B) tetanus immune globulin.
C) penicillin.
D) none;...
The most effective control of mosquito-borne disease is
The most effective control of mosquito-borne disease is
A) treatment of infected humans.
B) treatment of infected wild animals.
C) elimination of...
A 30-year-old woman was hospitalized after she experienced convulsions. On examination, she was alert and oriented and complained of a fever, headache, and stiff neck. Any of the following organisms could be responsible for her symptoms EXCEPT
A 30-year-old woman was hospitalized after she experienced convulsions. On examination, she was alert and oriented and complained of a fever, headache,...
All of the following diseases are caused by arbovirus EXCEPT
All of the following diseases are caused by arbovirus EXCEPT
A) St. Louis encephalitis.
B) eastern equine encephalitis.
C) West Nile encephalitis.
D)...
The symptoms of tetanus are due to
The symptoms of tetanus are due to
A) endospore formation.
B) systemic infection.
C) sustained relaxation of muscles.
D) tetanospasmin.
E) inflam...
Which of the following statements about rabies is FALSE?
Which of the following statements about rabies is FALSE?
A) It is caused by Lyssavirus.
B) Hydrophobia is associated with the disease.
C) Most infections...
All of the following organisms are transmitted via the respiratory route EXCEPT
All of the following organisms are transmitted via the respiratory route EXCEPT
A) Neisseria meningitidis.
B) Haemophilus influenzae.
C) Listeria...
Which of the following statements about leprosy is FALSE?
Which of the following statements about leprosy is FALSE?
A) It is rarely fatal.
B) Patients with leprosy must be isolated.
C) It is transmitted by...
All of the following organisms are correctly matched to the recommended treatment EXCEPT
All of the following organisms are correctly matched to the recommended treatment EXCEPT
A) Neisseria meningitidis — cephalosporins.
B) Haemophilus...
Which of the following pairs is mismatched?
Which of the following pairs is mismatched?
A) Neisseria meningitidis — produces deadly endotoxins
B) Haemophilus influenzae — virulence due to capsule
C)...
Which of the following statements about Neisseria meningitis is FALSE?
Which of the following statements about Neisseria meningitis is FALSE?
A) A healthy carrier state can exist.
B) It is encapsulated.
C) It is typically...
All of the following organisms cause meningitis EXCEPT
All of the following organisms cause meningitis EXCEPT
A) Neisseria meningitidis.
B) Haemophilus influenzae.
C) Cryptococcus neoformans.
D) Streptococcus...
Bacterial encephalitis and meningitis are difficult to treat because
Bacterial encephalitis and meningitis are difficult to treat because
A) no medications exist for treatment of these infections.
B) antibiotics damage...
All of the following are true regarding African trypanosomiasis EXCEPT
All of the following are true regarding African trypanosomiasis EXCEPT
A) it is also known as "sleeping sickness."
B) all subspecies of Trypanosoma...
Inflammation of the thin clear membrane lining the eyelid and eye is properly termed
Inflammation of the thin clear membrane lining the eyelid and eye is properly termed
A) keratititis
B) trachoma
C) ophthalmia neonatorum
D) conjunctivitis
E)...
Which of the following is likely to spread MRSA among athletes?
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...
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 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)...
Which of the following pairs is mismatched?
Which of the following pairs is mismatched?
A) chickenpox — poxvirus
B) conjunctivitis — Chlamydia trachomatis
C) keratitis — Acanthamoeba
D) otitis...
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
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...
Which of the following is incorrectly matched?
Which of the following is incorrectly matched?
A) Haemophilus influenzae — pinkeye
B) Chlamydia trachomatis — trachoma
C) Neisseria gonorrhea — opthalmia...
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 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...
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 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...
The patient has scaling skin on his fingers. Conidiospores are seen in microscopic examination of skin scrapings. The etiology is
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)...
The patient has vesicles and scabs over her forehead. Microscopic examination of skin scrapings shows gram-positive cocci in clusters. The etiology is
The patient has vesicles and scabs over her forehead. Microscopic examination of skin scrapings shows gram-positive cocci in clusters. The etiology...
The patient has a papular rash. Microscopic examination of skin scrapings reveals small eight-legged animals. The etiology is
The patient has a papular rash. Microscopic examination of skin scrapings reveals small eight-legged animals. The etiology is
A) Candida.
B) Microsporum.
C)...
Buruli ulcer is caused by
Buruli ulcer is caused by
A) gram-positive bacteria.
B) acid-fast bacteria.
C) a fungus.
D) a virus.
E) a mite
Answer: acid-fast bacteri...
Which of the following leads to all the others?
Which of the following leads to all the others?
A) toxemia
B) scalded skin syndrome
C) staphylococcal infection
D) TSST-1
E) sudden drop in blood...
A patient has pus-filled vesicles and scabs on her face, throat, and lower back. She most likely has
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)...
Scabies is transmitted by
Scabies is transmitted by
A) fomites.
B) food.
C) water.
D) soil.
E) respiratory secretions
Answer: fomite...
Scabies is a skin disease caused by a
Scabies is a skin disease caused by a
A) slow virus.
B) protozoan.
C) mite.
D) bacterium.
E) prion
Answer: mit...
Which of the following is used to treat candidiasis of the skin or mucous membranes?
Which of the following is used to treat candidiasis of the skin or mucous membranes?
A) penicillin
B) sulfonamide
C) trifluridine
D) miconazole
E)...
Which of the following is used to treat sporotrichosis?
Which of the following is used to treat sporotrichosis?
A) penicillin
B) sulfonamide
C) trifluridine
D) oral potassium iodide
E) acyclovir
Answer: oral...
Which of the following is used to treat shingles?
Which of the following is used to treat shingles?
A) penicillin
B) sulfonamide
C) trifluridine
D) fungicide
E) acyclovir
Answer: acyclovi...
Which of the following is used to treat herpetic keratitis?
Which of the following is used to treat herpetic keratitis?
A) penicillin
B) sulfonamide
C) trifluridine
D) fungicide
E) acyclovir
Answer: ...
The eradication of smallpox was possible because
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...
Which of the following statements about Reye syndrome is FALSE?
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...
Which of the following is NOT caused by HSV-1?
Which of the following is NOT caused by HSV-1?
A) cold sores
B) canker sores
C) herpes gladiatorum
D) herpes whitlow
E) herpes encephalitis
Answer: canker...
Which of the following are incorrectly matched?
Which of the following are incorrectly matched?
A) varicella-zoster — chickenpox
B) parvovirus — fifth disease
C) HHV-6 — roseola
D) herpes zoster...
Which of the following statements about congenital rubella syndrome is FALSE?
Which of the following statements about congenital rubella syndrome is FALSE?
A) It is contracted during the first trimester of pregnancy.
B) It may...
Why is vaccination for rubella recommended?
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)...
In which of the following respects is measles similar to German measles (rubella)?
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...
All of the following are causative agents of conjunctivitis EXCEPT
All of the following are causative agents of conjunctivitis EXCEPT
A) Chlamydia trachomatis.
B) herpes simplex.
C) adenovirus.
D) Neisseria gonorrhoeae.
E)...
Exfoliative toxin is responsible for
Exfoliative toxin is responsible for
A) otitis externa.
B) impetigo.
C) fever blisters.
D) scalded skin syndrome.
E) thrush
Answer: scalded...
Staphylococcus aureus is responsible for all of the following EXCEPT
Staphylococcus aureus is responsible for all of the following EXCEPT
A) pimples.
B) sties.
C) boils.
D) carbuncles.
E) acne.
Answer: acn...
Which region of the skin supports the largest bacterial population?
Which region of the skin supports the largest bacterial population?
A) armpits
B) scalp
C) forearms
D) feet
E) All of these support similarly sized...
Which of the following is a subcutaneous mycosis?
Which of the following is a subcutaneous mycosis?
A) tinea capitis.
B) sporotrichosis.
C) erysipelas.
D) athlete's foot.
E) Buruli ulcer
Answer...
A possible complication of chickenpox is
A possible complication of chickenpox is
A) encephalitis.
B) fever blisters.
C) subacute sclerosing panencephalitis.
D) congenital rubella syndrome.
E)...
Newborns' eyes are treated with an antibiotic
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...
Which of the following cause(s) ringworm?
Which of the following cause(s) ringworm?
A) Microsporum
B) Epidermophyton
C) Mycobacterium
D) Microsporum and Epidermophyton
E) Microsporum, Epidermophyton,...
All of the following are characteristic of the Group A beta-hemolytic streptococci EXCEPT
All of the following are characteristic of the Group A beta-hemolytic streptococci EXCEPT
A) methicillin resistance.
B) M proteins.
C) the ability...
The greatest single cause of blindness in the world is
The greatest single cause of blindness in the world is
A) neonatal gonorrheal ophthalmia.
B) keratoconjunctivitis.
C) trachoma.
D) inclusion conjunctivitis.
E)...
Thrush and vaginitis are caused by
Thrush and vaginitis are caused by
A) herpesvirus.
B) Chlamydia trachomatis.
C) Candida albicans.
D) Staphylococcus aureus.
E) Streptococcus pyogenes
Answer: candida...
All of the following are protective factors of the skin and its secretions EXCEPT
All of the following are protective factors of the skin and its secretions EXCEPT
A) keratin.
B) tightly packed cells.
C) lysozyme production.
D)...
All of the following are transmitted via the respiratory route EXCEPT
All of the following are transmitted via the respiratory route EXCEPT
A) smallpox.
B) chickenpox.
C) rubella.
D) tinea.
E) measles
Answer: ...
Koplik spots are a diagnostic indicator of
Koplik spots are a diagnostic indicator of
A) chickenpox.
B) smallpox.
C) fifth disease.
D) rubella.
E) measles.
Answer: measle...
All of the following are characteristic of Pseudomonas aeruginosa EXCEPT
All of the following are characteristic of Pseudomonas aeruginosa EXCEPT
A) gram-positive cell wall.
B) resistance to many types of disinfectants...
Warts are caused by
Warts are caused by
A) papillomavirus.
B) poxvirus.
C) herpesvirus.
D) parvovirus
Answer: papillomaviru...
Which of the following is NOT true of acne?
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)...
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?
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....
All of the following are normal microbiota of the skin EXCEPT
All of the following are normal microbiota of the skin EXCEPT
A) Streptococcus.
B) Micrococcus.
C) Staphylococcus.
D) Propionibacterium
E) Coryne...
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