quiz 4 lost antiparasitics

Question 1

we choose an antiparasitic based on 4 things:

Answer 1

susceptibility to parasite
likely toxicity to animal
price
ease of application

Question 2

why is understanding parasites’ life cycles important for proper use of antiparasitics?

Answer 2

they may only work against adult parasites

other steps may be needed for success

Question 3

define anthelmentics

Answer 3

drugs used to kill helminth prasites

Question 4

these antiparasitics are safe and used in most species

Answer 4

tetrahydropyrimidines

Question 5

2 examples of tetrahydropyrimidines

Answer 5

pyrantel

morantel

Question 6

liquid forms of ____ should be shaken before administration

Answer 6

pyrantel

Question 7

be careful when using an organophosphate insecticide with these antiparasitics

Answer 7

tetrahydropyrimidines

Question 8

some of the most commonly used and most effective antiparasitics

Answer 8

benzimidazoles

Question 9

when metabolized, febantel converts to

Answer 9

fenbendazole + oxfenbendazole

Question 10

how to benzimidazoles work?

Answer 10

they interfere with energy metabolism

Question 11

these benzimidazoles can be toxic to the liver

Answer 11

menbendazole

oxibendazole

Question 12

these are grocery store dewormers

Answer 12

piperazines

Question 13

this is the only piperazine found in the vet hospital

Answer 13

diethylcarbamazine citrate (nemacide, filaribits)

Question 14

how do piperazines work?

Answer 14

they paralyze the worms

Question 15

piperazines are only effective against:

Answer 15

ascarids in cats and dogs

Question 16

most common OTC dewormer

Answer 16

piperazines

Question 17

these are mostly used in large animals because there are safer alternatives for small animals

Answer 17

organophosphates

Question 18

with these, observe animals for signs of toxicity

Answer 18

organophosphates