quick facts Flashcards
When naming organisms genus should start with _____ and species with a ______ letter
Capital; small
a symbiotic relationship in which one benefits from the other without causing any harm
Commensalism
Parasite that can multiply in fecal matter outside the body
Coprophilic parasite
Host in which parasite undergoes an arrested development stage
Paratenic host
source of infection is known as the
Rservoir
Oriental liver fluke
Clonorchis senensis
profile of a man
Schistosoma mansoni
beef tapeworm
Taenia saginata
pork tapeworm
Taenia solium
Dwarf tapeworm
Hymenolepis nana
Double-pored tapeworm
Dypilidium caninum
Hydatid worm
Echinococcus granulosus
embryonated egg as Infective stage
Hymenolepis nana
Enterobius
Ascaris
Trichuris
3rd stage larva filariform
Filarial worms Dirofilaria Dracunculus Angiostrongylus cantonensis Anisakis
Schistosoma spp. infective stage
Cercaria
Taenia saginata infective stage
Cysticercus bovis
Dyphyllobothrium latum infective stage
Plerocercoid larva
Paragonimus infective stage
Metacercaria
Parasitology slides and control are used for _____
quality control purposes
appropriate collection container for stool sample
clean, dry, water-proof container with a tight-fitting lid
CDC recommends _______ stool samples, collected on separate days, be examined for O & P test
THREE or more
beyond 1 hour , stool samples must be ____
refrigerated
*formed stools
Diarrheic stools must be examined within _____ to _____ after passage
30 minutes to 1 hour
What form is fragile and could be destroyed at refrigerator temperature
Trophozoite
interferes with identification of protozoan cysts
Mineral oil droplets
emulsifying agent for stool and stains nuclei of protozoans
Lugol’s iodine
stain recommended for intestinal microsporidia
Modified trichrome stain
stain recommended for intestinal coccidia
Modified trichrome stain
preservative for direct fecal smear
Formalin
uses cellophane paper soaked in a mixture of Glycerine and malachite green
Kato-thick smear
test to detect eggs of enterobius
scotch tape swab
larva moving upwards in the harada mori culture technique
Strongyloides
larva moving downwards in the harada mori technique
Hookworm
concentration technique for detection of ova and cysts
Formalin-ether concentration technique
wrap sample in a cheese cloth & submerge it in a funnel filled with water
Baermann funnel technique
Baermann funnel technique is used to identify what parasite?
Strongyloides stercoralis
Zinc sulfate floatation method is NOT for?
operculated eggs, schistosomes, or infertile ascaris eggs
concentration test used to detect microfilariae
Knott’s concentration
xenodiagnosis is performed to detect
T. cruzi & T. spiralis
vector of ascaris lumbricoides
Coackroach
*Periplatena americana?
Ascaris egg without mamillary coating
Decorticated egg
peripheral blood picture in Loeffler’s syndrome
Peripheral eosinophilia
Heart-to-Lung-migration
Ascaris lumbricoides
Strongyloides stercoralis
Hookworms
severe itching/allergic reaction at the site of skin penetration by hookworm filariform larvae
Ground itch
feeding stage of nematodes (hookworm,threadworm)
Rhabditiform larvae
infective stage of nematodes (hookworm,threadworm)
Filariform larvae
intestinal nematode capable of vertical transmission & congenital infections
Ancylostoma duodenale
agent of cutaneous larva migrans or creeping eruption
Dog hookworm (A. caninum)
Agent of visceral larva migrans
Toxocara canis & T. cati