Chapter 23 MULTIPLE CHOICE Choose the one alternative that best completes the statement or answers the question 1 Which of the following is NOT a characteristic of Bacillus anthracis A forms endospores B produces endotoxins C is aerobic D found in soil E is gram positive Answer B 2 Which of the following statements about sepsis is FALSE A It usually is caused by gram positive bacteria B Lymphangitis may occur C It can be treated with antibiotics D It may be aggravated by antibiotics E Symptoms include fever and decreased blood pressure Answer A 3 Which of the following CANNOT be transmitted to humans from domestic cats A plague B Chagas disease C toxoplasmosis D Bartonella E None of the answers is correct all of these diseases can be transmitted to humans from domestic cats Answer B 4 Which of the following statements about rheumatic fever is FALSE A It is an inflammation of the joints B It is rarely fatel even when untreated C It is an inflammation of the heart D The incidence has declined in the last ten years E It is a complication of a group A beta hemolytic streptococcal infection Answer B 5 Which of the following is evidence that the arthritis afflicting children in Lyme Connecticut was due to bacterial infection A affected mostly children B not contagious C transmitted by ticks D accompanied by a rash E treatable with penicillin Answer E 1 6 Which of the following statements about toxoplasmosis is FALSE A It is transmitted by the gastrointestinal route B It is a severe illness in adults C It can be congenital D It is caused by a protozoan E The reservoir is cats Answer B 7 A predisposing factor for infection by Clostridium perfringens is A an infected finger B hyperbaric treatment C debridement D gangrene E burns Answer D 8 Which of the following pairs is mismatched A Rickettsia intracellular parasite B Francisella gram positive facultatively anaerobic pleomorphic coccirods C Brucella gram negative aerobic rods D Bacillus gram positive endospore forming rods E None of the pairs is mismatched Answer B 9 Which of the following leads to all the others A blockage of capillaries B bacterial growth in endothelial cells C subcutaneous hemorrhaging D presence of antirickettsial antibodies E breakage of capillaries Answer B 10 Which of the following statements about tularemia is FALSE A The most common reservoir is rabbits B It occurs only in California C It may be transmitted by arthropods D It may be transmitted by direct contact E It is caused by Francisella tularensis Answer B 11 Which of the following is the same for both relapsing fever and undulant fever A etiology B presence of rash C mode of transmission D vector E reservoir Answer D 2 12 Which of the following is NOT caused by a bacterium A plague B malaria C epidemic typhus D tickborne typhus E relapsing fever Answer B 13 You advise your pregnant friend to give her cat away because she could contract A listeriosis B toxoplasmosis C infectious mononucleosis D Brukitt s Lymphoma E plague Answer B 14 Which of the following bacterial infections CANNOT be transmitted by dog or cat bites A Pasteurella multocida B Bartonella henselae C Streptobacillus D Fusobacterium E None of the answers is correct all of these bacterial infections can be transmitted by dog or cat bites Answer C 15 Bioweapons A have been used for centuries B are not susceptible to antibiotics C are all viruses D are all respiratory pathogens E are impossible to detect Answer A 16 Unsanitary and crowded conditions increase the incidence of all of the following diseases EXCEPT A endemic murine typhus B relapsing fever C epidemic typhus D plague E Rocky Mountain spotted fever Answer E 17 A patient has the following symptoms a papule enlarged lymph nodes Microscopic examination of the papule reveals nucleated cells in white blood cells The patient most likely has A anthrax B malaria C brucellosis D schistosomiasis E leishmaniasis Answer E 3 18 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 yellow fever B Hantavirus hemorrhagic fever C Bolivian hemorrhagic fever D typhus E dengue Answer E 19 Which of the following pairs is mismatched A Yersinia plague B Streptobacillus rat bite fever C Pasteurella cat scratch disease D Borrelia relapsing fever E Spirillum rat bite fever Answer C 20 A patient presents with inflammation of the heart valves fever malaise and subcutaneous nodules at joints The recommended treatment is A hyperbaric chamber B chloroquine C anti inflammatory drugs D praziquantel E streptomycin Answer C 21 Which of the following pairs is NOT correctly matched for Gram reaction A Ehrlichia gram positive B anthrax gram positive C Lyme disease gram negative D tularemia gram negative E Rocky Mountain spotted fever gram negative Answer A 22 Which of the following produces a permanent carrier state following infection A Toxoplasma B Borrelia C Yersinia D Spirillum E cytomegalovirus Answer E 23 Which of the following is NOT transmitted in raw milk A listeriosis B anthrax C toxoplasmosis D brucellosis E All of these can be transmitted in raw milk Answer C 4 24 Human to human transmission of plague is usually by A unsanitary conditions B rat flea C dog flea D the respiratory route E wounds Answer D 25 Which of the following pairs regarding the epidemiology of malaria is mismatched A treatment antibiotics B diagnosis presence of merozoites C vector Anopheles D etiology Plasmodium E found in liver sporozoites Answer A 26 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 A routine peripheral blood smear revealed ring shaped bodies in the RBCs What treatment would you prescribe A hyperbaric oxygen B streptomycin C no treatment D mefloquine E penicillin Answer D 27 Scrapings from a patient s rash reveal cercariae The disease is most likely A relapsing fever B Lyme disease C Rocky Mountain spotted fever D Chagas disease E swimmer s itch Answer E 28 Arthropods can serve as a reservoir for all of the following diseases EXCEPT A malaria B yellow fever C brucellosis D epidemic typhus E plague Answer C 29 Which of the following statements about puerperal sepsis is FALSE A Its frequency of occurrence has decreased because of antibiotics and aseptic techniques B It begins as a focal infection C It is a complication of abortion or childbirth D It is transmitted