Praziquantel is effective against which group of parasites?

Prepare for Success! In Clinical Laboratory Science with our Parasitology Test. Study with flashcards, multiple choice questions, hints, and explanations. Boost your readiness for the exam!

Multiple Choice

Praziquantel is effective against which group of parasites?

Explanation:
Praziquantel works by disrupting the parasite’s tegument and increasing calcium permeability, which causes strong, sustained contractions and paralysis, leading to death. This mechanism targets flatworms most effectively—tapeworms (cestodes) and flukes (trematodes)—making cestodes the correct group among the choices. It isn’t reliably effective against nematodes (roundworms), protozoa, or microsporidia, which require different drugs with different targets and mechanisms.

Praziquantel works by disrupting the parasite’s tegument and increasing calcium permeability, which causes strong, sustained contractions and paralysis, leading to death. This mechanism targets flatworms most effectively—tapeworms (cestodes) and flukes (trematodes)—making cestodes the correct group among the choices. It isn’t reliably effective against nematodes (roundworms), protozoa, or microsporidia, which require different drugs with different targets and mechanisms.

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