Malaria MCQ Quiz | PUO & Febrile Illnesses

1. Which Plasmodium species is most commonly associated with cerebral malaria and other severe complications?

2. The infective stage of Plasmodium transmitted from the mosquito to humans is the:

3. Fever paroxysms occurring every 72 hours (quartan fever) are characteristic of infection with:

4. Schüffner’s dots are fine, eosinophilic stippling characteristically seen in red blood cells infected with:

5. Which antimalarial drug is essential for the radical cure of P. vivax and P. ovale by targeting hypnozoites?

6. The primary site of pre-erythrocytic schizogony in the human host is the:

7. Blackwater fever, a severe complication of malaria, is characterized by:

8. Which diagnostic test for malaria detects parasite-specific antigens like HRP-2 or pLDH?

9. Artemisinin-based Combination Therapy (ACT) is the recommended first-line treatment for uncomplicated P. falciparum malaria primarily to:

10. The sexual stage of the Plasmodium life cycle, involving gametocyte fusion and oocyst formation, occurs in the:

11. A “ring form” seen on a Giemsa-stained peripheral blood smear is the earliest trophozoite stage of which parasite?

12. Recrudescence in malaria refers to the:

13. Which of the following is a key criterion for diagnosing severe malaria according to WHO guidelines?

14. The vector responsible for transmitting malaria to humans belongs to which mosquito genus?

15. A patient with G6PD deficiency is at high risk of developing acute hemolytic anemia if treated with which drug?

16. Maurer’s clefts are coarse, irregular dots or blotches found in erythrocytes infected with:

17. What is the primary mechanism of action of Chloroquine?

18. The “tertian” fever pattern (fever recurring every 48 hours) is classically associated with which two Plasmodium species?

19. Which stage of the Plasmodium parasite is directly responsible for the clinical manifestations of malaria (e.g., fever, chills)?

20. In the microscopic diagnosis of malaria, a “thick smear” is primarily used for:

21. Which Plasmodium species is known to cause a long-lasting, chronic infection that can persist for decades if untreated, often associated with nephrotic syndrome?

22. The term “hypnozoite” refers to a:

23. Chemoprophylaxis for travelers going to a chloroquine-resistant area may include all of the following EXCEPT:

24. Sequestration of parasitized red blood cells in the microvasculature of vital organs is a key pathogenetic feature of:

25. In the malaria life cycle, the definitive host (where sexual reproduction occurs) is the: