UAMS Parasitology Exam 4 Kahoot

Identify

Plasmodium faciparum

Which of the following are classified as Coccidian protozoans?

-Cryptosporidium species

-Toxoplasma gondii

-Sarcocystic species

What procedures is PVA ideal for?

-Permanently stained smears

The following organisms were seen on peripheral blood smears from a patient with recent travel to Connecticut. What is it?

Babesia species

What stain should be used for Coccidian protozoans due to trichomes’ poor staining performance with these organisms?

Modified acid fast

What vector is required for Plasmodium species?

Anopheles mosquitos

Identify organism & stage of development

Plasmodium vivax; schizont

Schuffner’s dot seen in:

-Plasmodium vivax

-Plasmodium ovale

Will ALL parasites be found on top of the supernatant in zinc sulfate flotation?

No, heavy ova like Ascaris will be found at the bottom of the tube instead.

For humans, what is the infective form of Plasmodium species?

Sporozoites

Humans are the definitive hosts for Plasmodium species.

False

Which Plasmodium species invade RBCs of all ages?

Plasmodium knowlesi

-Plasmodium falciparum

Which Plasmodium species can cause relapse due to dormant forms called hypnozoites in the liver?

-Plasmodium ovale

-Plasmodium vivax

Which stage of sporozoan development occurs in humans and what is the end product of this stage?

Schizogony; merozoites

What protozoan stage of development are you more likely to find in a formed stool specimen?

Cysts