Nematodes

Question 1

Ascaris lumbricoides

Tx: Albendazole

Answer 1

Transmission:
Ingestion of eggs

Infective Stage:
Embryonated eggs

Diagnostic Stage:
Unembryonated Eggs

Question 2

Necator americanus
Ancylostoma duodenale

Tx: Albendazole

Answer 2

Transmission:
Larvae penetrate skin

Infective Stage:
Filariform larvae

Diagnostic Stage:
Eggs in feces

Question 3

Trichuris Trichiura

Tx: Mebendazole

Answer 3

Transmission:
Ingestion of Eggs

Infective Stage:
Embryonated egg

Diagnostic Stage:
Unembryonated Egg

Question 4

Enterobius vermicularis

Tx: Pyrantel pamoate

Answer 4

Transmission:
Ingestion of eggs

Infective Stage:
Embryonated eggs

Diagnostic Stage:
Eggs on perianal fold
(Scotch Tape)

Question 5

Strongyloides stercoralis

Tx: Ivermectin

Answer 5

Transmission:
Larvae penetrate skin

Infective Stage:
Filariform larvae

Diagnostic Stage:
Rhabditiform larvae

Question 6

Capillaria philippinensis
Life cycle with migratory bird

Tx: Albendazole

Answer 6

Transmission:
Undercooked fish

Infective Stage:
Infected larvae

Diagnostic Stage:
Unembryonated Egg

Question 7

Wuchereria bancrofti - Culex, Aedes, Anopheles
Brugia malayi - Mansoni

Tx: Diethylcarbamazine (DEC)

Answer 7

Transmission:
Mosquito bite

Infective Stage:
3rd stage larvae

Diagnostic Stage:
Microfilariae

Question 8

Trichinella Spiralis
intermediate host: Pigs

Tx: Thiabendazole

Answer 8

Transmission:
Undercooked pork

Infective Stage:
Encysted larvae

Diagnostic Stage:
Encysted larvae