NEMATODES Flashcards
NEMATODES STAGES IN LIFE CYCLE
egg, larvae, adults
most common intestinal nematode
Ascaris Lumbricoides
Common Name for Ascaris Lumbricoides
Giant Intestinal Roundworm
outer covering of fertilized A. Lumbricoides ova
albuminoid coat
3 layers of egg shell in A. Lumbricoides
> inner non permeable vitelline membrane
thick transparent middle layer glycogen Membrane
Outer coat albuminoid layer
larvae migration of A.lumbriocides in lungs causes
Ascaris Pneumonitis
Disease of Poverty
Loaffler’s Syndrome or STH
Habitat of A. lumbricoides
Small Intestine
MOT of A. lumbricoides
Ingestion of embryonated eggs
Infective stage of A. lumbricoides
Embryonated ova
Stool examinations for the diagnosis of Ascariasis
> DFS - 2mg
Concentration techniques - kato katz, FECT
Treatment for A.lumbricoides
- Albendazole
- Mebendazole
- Pyrantel pamoate
AKA dog and Cat ascaris
Toxocara canis & Toxocora cati
Habitat of Toxocara canis & Toxocora cati
Small Intestine
MOT of Toxocara canis & Toxocora cati
Accidental Ingestion by human
Treatment for Toxocara canis & Toxocora cati
Thiabendazole
Common name for trichuris trichuria
Whipworm
loss of muscle tone of anal sphincter
rectal prolapse
habitat of trichuris trichuria
Large Intestine
MOT of trichuris trichuria
Ingestion of embryonated eggs
infective stage of trichuris trichuria
embryonated eggs
lab diagnosis for trichuris trichuria
Laboratory Diagnosis:
- Stool examination
> DFS
> Concentration techniques: Kato-katz, FECT
Treatment for trichuris trichuria
Albendazole
- Mebendazole
AKA New World Hookworm
Necator Americanus
habitat of Necator Americanus and Ancylostoma duodenale
Small Intestine
MOT of Hookworms
Skin penetration of filariform larvae
Ingestion of contaminated food