L15 QS BANK, BMS204! Chagas Disease MCQ Quiz PDF

Okay, here is a 30-MCQ quiz on Chagas disease based on the provided lecture: Part One: Simple MCQs (10) 1. Which parasite causes Chagas disease? a) Plasmodium falciparum b) Trypanosoma cruzi c) Leishmania donovani d) Entamoeba histolytica 2. What is the classical sign of acute Chagas di...

Okay, here is a 30-MCQ quiz on Chagas disease based on the provided lecture: Part One: Simple MCQs (10) 1. Which parasite causes Chagas disease? a) Plasmodium falciparum b) Trypanosoma cruzi c) Leishmania donovani d) Entamoeba histolytica 2. What is the classical sign of acute Chagas disease? a) Fever b) Romana's sign c) Chagoma d) Cardiomegaly 3. Where is the intracellular amastigote form of T. cruzi found? a) Blood b) Muscles c) Lymph d) Gut of insect 4. What is the infective stage of T. cruzi to humans? a) Epimastigotes b) Amastigotes c) Trypomastigotes d) Metacyclic trypomastigotes 5. Which of the following is a common vector species for Chagas disease? a) Anopheles mosquito b) Tsetse fly c) Sandfly d) Reduviid bug 6. Which of the following is not a route of transmission for Chagas disease? a) Sexual transmission b) Respiratory droplets c) Blood transfusion d) Organ transplantation 7. What is the most frequent route of transmission of Chagas disease in Brazil? a) Vector transmission b) Blood transfusion c) Organ transplantation d) Oral transmission 8. What is the incubation period for acute Chagas disease? a) 1-2 weeks b) 1-4 months c) 1-2 years d) 10-20 years 9. What percentage of patients enter the indeterminate form of chronic Chagas disease?  a) 10-20% b) 30-40% c) 60-70% d) 90-100% 10. What is the treatment for acute and early chronic Chagas disease? a) Nifurtimox b) Benznidazole c) Both a and b d) No treatment available Part Two: Complex MCQs (20) 1. Which form of T. cruzi is found in the peripheral blood of humans? a) Amastigote b) Trypomastigote c) Epimastigote d) Promastigote 2. What is the main diagnostic stage of T. cruzi in humans? a) Epimastigote b) Metacyclic trypomastigote c) Amastigote d) Trypomastigote 3. Which of the following is a characteristic of the indeterminate form of chronic Chagas disease? a) Presence of symptoms b) Absence of symptoms c) Presence of complications d) High mortality rate 4. Which of the following is a characteristic of the determinate form of chronic Chagas disease? a) Absence of symptoms b) Presence of complications c) Low mortality rate d) High cure rate 5. Which of the following is not a characteristic of the trypomastigote form of T. cruzi? a) C or S shape b) Non-multiplying form c) Found in the intracellular spaces d) About 25µ in length 6. Which of the following is not a characteristic of the epimastigote form of T. cruzi? a) Found in the insect vector b) Divides by binary fission c) Non-multiplying form d) Elongated body 7. Which of the following is not a characteristic of the amastigote form of T. cruzi? a) Found in muscles b) Oval bodies  c) Divides by binary fission d) About 25µ in length 8. Which of the following is not a clinical manifestation of acute Chagas disease? a) Chagoma b) Romana's sign c) Megaesophagus d) Fever 9. Which of the following is not a clinical manifestation of chronic Chagas disease? a) Cardiomegaly b) Megacolon c) Chagoma d) Peripheral nervous involvement 10. Which of the following is not a diagnostic method for Chagas disease? a) Microscopy b) Culture c) Xenodiagnosis d) Urine analysis 11. Which of the following is not a serological test used for the diagnosis of Chagas disease? a) IHA b) IFA c) PCR d) ELISA 12. Which of the following is not a molecular technique used for the diagnosis of Chagas disease? a) PCR b) ELISA c) Xenodiagnosis d) All of the above 13. Which of the following is not a method for the prevention and control of Chagas disease? a) Control of winged bugs b) Vaccination c) Personal protection d) Detection and treatment of active cases 14. Which of the following is not a complication of Chagas disease? a) Cardiomyopathy b) Megaesophagus c) Anemia d) Meningoencephalitis 15. Which of the following is not a risk factor for Chagas disease? a) Living in an endemic area b) Receiving a blood transfusion in an endemic area c) Eating contaminated food d) Traveling to a non-endemic area 16. Which of the following is not a characteristic of the Reduviid bug? a) It is a night biting bug. b) It defecates while feeding.  c) It transmits T. cruzi through its saliva. d) It can live in cracks and holes indoors and outdoors. 17. Which of the following is not a form of congenital infection with T. cruzi? a) Transmission from mother to fetus during pregnancy. b) Transmission from mother to baby during childbirth. c) Transmission from mother to baby through breast milk. d) All of the above are forms of congenital infection. 18. Which of the following is not a clinical feature of congenital Chagas disease? a) Myocardial damage b) Neurological damage c) Romana's sign d) All of the above are clinical features. 19. Which of the following is not a method for diagnosing congenital Chagas disease? a) PCR detection of the parasite b) Finding trypomastigotes in circulating blood c) Serological tests d) All of the above are diagnostic methods. 20. Which of the following is not a true statement about the treatment of congenital Chagas disease? a) The cure rate is high when babies are treated within the first year of life. b) Left untreated, babies will enter the chronic phase of infection. c) Treatment is with antiparasitic medication. d) Treatment is only effective if started after the first year of life. Answer Guide Part One 1. b 2. b 3. b 4. d 5. d 6. B 7. d 8. a 9. c 10. c Part Two 11. b 12. d 13. b 14. b 15. c 16. c 17. d 18. c 19. c 20. d 21. c 22. c 23. b 24. c 25. d 26. c 27. c 28. c 29. c 30. d Done