front 1 1) 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 secretions. | back 1 A |
front 2 2) Which of the following is mismatched? A) pharyngitis — sore throat B) laryngitis — voice loss C) epiglottitis — sore throat | back 2 C |
front 3 3) 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) epiglottitis. | back 3 E |
front 4 4) Which of the following statements about mycoplasmal pneumonia is TRUE? A) The causative agent is a virus. B) The symptoms resemble pneumococcal pneumonia. C) The causative agent cannot be cultured. D) Treatment is tetracyclines. | back 4 D |
front 5 5) Which of the following is NOT a typical symptom of influenza? A) fever B) chills C) headache D) diarrhea | back 5 D |
front 6 6) Which of the following is mismatched? A) Corynebacterium — gram-positive rod B) Mycobacterium — acid-fast rod C) Mycoplasma — gram-positive pleomorphic rod | back 6 C |
front 7 7) Which of the following microorganisms causes symptoms most like tuberculosis? A) Histoplasma B) Coccidioides C) Legionella | back 7 A |
front 8 8) All of the following can lead to a positive tuberculin skin test EXCEPT A) vaccination. B) current tuberculosis infection. C) previous tuberculosis infection. D) immunity to tuberculosis. E) being near someone with tuberculosis. | back 8 E |
front 9 9) Which of the following diseases is NOT correctly matched to its vaccine? A) tuberculosis — toxoid B) whooping cough — heat-killed bacteria C) diphtheria — toxoid | back 9 A |
front 10 10) Which of the following diseases has a cutaneous form, especially in individuals over 30 years of age? A) coccidioidomycosis B) diphtheria C) legionellosis | back 10 B |
front 11 11) Which of the following requires treatment with both antibiotics and antitoxins? A) diphtheria B) tuberculosis C) whooping cough | back 11 A |
front 12 12) Which of the following is mismatched? A) epiglottitis — Haemophilus B) Q fever — Rickettsia C) psittacosis — Chlamydia | back 12 B |
front 13 13) Which of the following does NOT cause otitis media? A) Streptococcus pneumoniae B) Haemophilus influenzae C) Streptococcus pyogenes D) Moraxella catarrhalis E) Coxiella burnetii | back 13 E |
front 14 14) Which of the following causes opportunistic infections in AIDS patients? A) Pneumocystis B) Aspergillus C) Rhizopus D) Mucor E) All of the answers are correct. | back 14 E |
front 15 15) Which of the following diseases is NOT correctly matched to its reservoir? A) tuberculosis — cattle B) histoplasmosis — soil C) psittacosis — parakeets D) coccidioidomycosis — air | back 15 D |
front 16 16) 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) early treatment will drastically reduce the disease symptoms. | back 16 C |
front 17 17) Which one of the following causes a disease characterized by the catarrhal, paroxysmal, and convalescent stages? A) Bordetella pertussis B) Corynebacterium diphtheriae C) Mycobacterium tuberculosis | back 17 A |
front 18 18) Which one of the following is an irregular, gram-positive rod? A) Bordetella pertussis B) Corynebacterium diphtheriae C) Burkholderia pseudomallei | back 18 B |
front 19 19) Infection by which of the following results in the formation of Ghon complexes? A) Bordetella pertussis B) Corynebacterium diphtheriae C) Mycobacterium tuberculosis | back 19 C |
front 20 20) Which one of the following produces the most potent exotoxin? A) Bordetella pertussis B) Corynebacterium diphtheriae C) Mycobacterium tuberculosis | back 20 B |
front 21 21) The most effective means of preventing influenza is A) annual vaccination. B) isolation of carriers. C) vector control. | back 21 A |
front 22 22) Which of the following is an opportunistic pathogen? A) Pneumocystis B) Legionella C) Histoplasma | back 22 A |
front 23 23) Which of the following etiologic agents results in the formation of abscesses? A) Staphylococcus B) Mycoplasma C) Streptococcus D) Blastomyces | back 23 D |
front 24 24) The primary victims of the influenza pandemic of 1918-1919 were A) members of the military. B) infants and the elderly. C) residents of Spain; therefore, it was known as the "Spanish Flu." D) young adults. | back 24 D |
front 25 25) All of the following are used as first-line drugs for treating tuberculosis EXCEPT A) ethambutol. B) isoniazid. C) fluoroquinolones. | back 25 C |
front 26 26) Infection by which of the following is often confused with viral pneumonia? A) Blastomyces B) Coccidioides C) Mycoplasma | back 26 C |
front 27 27) Which one of the following causes a disease characterized by a red rash? A) Blastomyces B) Coccidioides C) Mycoplasma D) Streptococcus | back 27 D |
front 28 28) Inhalation of arthroconidia is responsible for infection by which of the following organisms? A) Blastomyces B) Coccidioides C) Mycoplasma | back 28 B |
front 29 29) Soil is a reservoir for all of the following EXCEPT A) Q fever. B) melioidosis. C) blastomycosis. | back 29 A |
front 30 30) A patient has pneumonia. Gram-negative rods are cultured on nutrient agar from a sputum sample. The etiology is A) Burkholderia pseudomallei. B) Chlamydophila psittaci. C) Haemophilus influenzae. | back 30 A |
front 31 31) The patient is suffocating because of an inflamed epiglottis. What is the etiology of the symptoms? A) Corynebacterium B) Haemophilus C) Bordetella | back 31 B |
front 32 32) The patient has a sore throat. What is the etiology of the symptoms? A) Corynebacterium B) Rhinovirus C) Bordetella D) Streptococcus E) The answer cannot be determined based on the information provided. | back 32 E |
front 33 33) The patient is suffocating because of the accumulation of dead tissue and fibrin in her throat. What is the etiology of the symptoms? A) Corynebacterium B) Haemophilus C) Bordetella | back 33 A |
front 34 34) Which of the following is mismatched? A) Burkholderia — melioidosis B) Coxiella — Q fever C) Mycoplasma — walking pneumonia D) Chlamydophila — psittacosis E) Mycobacterium — whooping cough | back 34 E |
front 35 35) All of the following are classified as fungi EXCEPT A) Blastomyces. B) Coccidioides. C) Histoplasma. D) Mycobacterium. | back 35 D |
front 36 36) Microscopic examination of a lung biopsy shows thick-walled cysts. What is the etiology of the symptoms? A) Blastomyces B) Coccidioides C) Histoplasma D) Mycobacterium E) Pneumocystis | back 36 E |
front 37 37) Microscopic examination of a lung biopsy shows spherules. What is the etiology of the symptoms? A) Blastomyces B) Coccidioides C) Histoplasma | back 37 B |
front 38 38) Which of the following statements regarding tuberculosis is FALSE? A) Nearly 1/3 of the world's population is infected with tuberculosis. B) Nearly 1/3 of the world's population shows symptoms of tuberculosis. C) It is responsible for nearly 2 million deaths per year. | back 38 B |
front 39 39) A patient has a paroxysmal cough and mucus accumulation. What is the etiology of the symptoms? A) Bordetella B) Corynebacterium C) Burkholderia | back 39 A |
front 40 40) A patient who presents with red throat and tonsils can be diagnosed as having A) streptococcal pharyngitis. B) scarlet fever. C) diphtheria. D) the common cold. E) The answer cannot be determined based on the information provided. | back 40 E |
front 41 41) A patient has fever, difficulty breathing, chest pains, fluid in the alveoli, and a positive tuberculin skin test. Gram-positive cocci are isolated from the sputum. The patient most likely has A) tuberculosis. B) influenza. C) pneumococcal pneumonia. | back 41 C |
front 42 42) Which of the following is responsible for epidemics of respiratory disease in infants? A) rhinovirus B) adenovirus C) respiratory syncytial virus | back 42 C |
front 43 43) Which of the following is NOT an intracellular parasite? A) Chlamydophila B) Coccidioides C) Coxiella | back 43 C |
front 44 44) Which one of the following produces small "fried-egg" colonies on medium containing horse serum and yeast extract? A) Chlamydophila B) Legionella C) Mycobacterium D) Mycoplasma | back 44 D |
front 45 45) Legionella is transmitted by A) airborne transmission. B) foodborne transmission. C) person-to-person contact. | back 45 A |
front 46 1) It is common for a normal, healthy individual to carry potentially pathogenic organisms in their upper respiratory tract. | back 46 TRUE |
front 47 2) Most cases of sinusitis and otitis media will not resolve unless they are treated with antibiotics. | back 47 FALSE |
front 48 3) The symptoms of diphtheria are due to an exotoxin that blocks proteins synthesis in host cells. | back 48 TRUE |
front 49 4) The most common causative agent of bacterial pneumonia is Streptococcus pneumoniae. | back 49 TRUE |
front 50 5) A positive tuberculosis skin test indicates that the patient has active tuberculosis. | back 50 FALSE |
front 51 6) Vaccination with the influenza vaccine confers lifelong immunity to influenza virus. | back 51 FALSE |
front 52 7) Coccidioides immitis causes Valley fever, a disease that is endemic to the Mississippi Valley. | back 52 FALSE |
front 53 8) Mycoplasma pneumoniae causes atypical pneumonia, also known as "walking pneumonia." | back 53 TRUE |
front 54 9) Risks for Q fever include contact with infected cattle and drinking unpasteurized milk. | back 54 TRUE |
front 55 10) Infections with Legionella pneumophila are usually transmitted via aerosols from contaminated air conditioning systems, showers, and humidifiers. | back 55 TRUE |