Parasitology — Flashcards

Flashcard 101: _____ oocysts can be visualized with an Acid-Fast (Ziehl-Neelsen) stain

Answer: Cryptosporidium

Flashcard 102: _____ to 25 cysts (#) are required for Giardia lamblia (G. lamblia) infection.

Answer: 10

Flashcard 103: _____ is a flagella-ted intestinal non-invasive parasite responsible for most flagellated protozoan small intestine colonizations in the U.S.

Answer: Giardia lamblia

Flashcard 104: What tests (3) are used to diagnose Entamoeba histolytica?_____; ELISA stool+serum antigen test; Serology to detect Entamoeba antibodies

Answer: Stool O&P (ova and parasites)

Flashcard 105: _____ medium is used for the culture of Trypanosoma and Leishmania

Answer: NNN (Novy, McNeal, and Nicolle)

Flashcard 106: Ingestion of _____ in undercooked beef or pork results in taeniasis (intestinal infection)

Answer: Taenia cysticerci (larvae)

Extra: Note: Ingestion of T. solium eggs via contaminated water/food (fecal-oral route) results in cysticercosis (tissue infection), whereas ingestion of larvae (cysticerci) in undercooked meat results in taeniasis (intestinal infection).

Flashcard 107: _____ dye test is gold standard for the diagnosis of Toxoplasmosis.

Answer: Sabin Feldman

Flashcard 108: Which helminth is associated with consumption of undercooked crab meat infected with _____ larvae?Paragonimus westermani (lung fluke)

Answer: metacercariae

Flashcard 109: The _____ mosquitoes carry sporozoites of Plasmodium spp. in their saliva

Answer: anopheles

Flashcard 110: The following are the parasites causing autoinfection (mnemonic: CHEST.C)C-_____H-Hymenolepis nanaE-Enterobius vermicularisS-Strongyloides stercoralisT-Taenia soliumC-Capillaria philippinensis

Answer: Cryptosporidium parvum