Sample Questions Flashcards
Enterobiasis is usually diagnosed by identifying the
Eggs in perianal swabs
In light ingection of Trichiuriasis, the adults may be found in the
Ceacum
This nematode is usually found in fish eating birds, infects humans who ingests raw or half cooked fresh water fish like Hypselotris bipartita
Capillaria philippinensis
Nematode infection which is aquired by eating inadequately cooked infected pork
Trichinella spiralis”
The following pairs of helminthes cannot be differentiated by the appearance of their eggs
A. duodenale and N. americanus
Examination of diodenal aspirates or string test specimens maybe helpful in suspicious cases in which direct fecal smears are found to be negative for the of the diagnostic larvae of this nematode parasite
S. stercoralis
”"”Creeping eruption”” or cutaneous larval migrans is a condition caused by
A. braziliense
The best technique to identify this nematode diagnostically is by performing muscle biopsy
T. spiralis
Infective stage of this soil transmitted nematode is the filariform larva
N. americanus
Nematode that passes the lungs to complete its life cycle
A. lubricoides
The host where the sexual reproductive stage of the parasite exists is called
definitive host
Which of the following technique is the most dependable procedure for accurate, specific diagnosis of an ACUTE AMOEBIC INTESTINAL INFECTION
permanently stained smear
The following is not a fixative or preservative used for detection of parasites is stool fecal samples
glycerol water
The rhabditiform larva of S. stercoralis except
is infective to humans
Solution used in direct fecal smear (DFS)
NSS
The most widely used fecal technique, Kato-Katz Modified Thick Smear is
quantitative technique
This nematode does not produce eggs in feces
A. stercoralis
A microfilaria causing a serious eye disease and identified with a sheath and terminal nuclei
Loa-loa
Toxocara canis is the causative agent of
visceral larval migrans
Guitar/peanut shape eggs with less prominent mucus plugs
C. philippinensis
Causative agent of meningoencephalitis in man
A. cantonensis
”"”Loeffier’s Syndrome”” is clinically found in
a. Hookworm infection
b. Triciuriasis
c. Both
d. Neither
Neither
Tissue nematode capable of encysting and developing in striated muscles
T. spiralis
This parasite may caused hematuria
S. hemtobium
Trematode infection which can be acquired by eating raw, half-cooked, or pickled fish
C. sinensis
An intestinal fluke with asn additional 3rd genital sucker
H. heterophytes
A trematode fluke that is similar to S. japanicum but smaller in size, recently discovered occuring mainly in the Mekong River basin
S. mekongi
Adult flukes of trematodes are characterized by the presence of an oral sucker for feeding and a ventral sucker for
attachment
The larval stages of the trematode group are usually found in the
intermediate host
Non-pathogenic emoeba, lumen dweller
All of the above (E. coli, E. nana, L. butschlii)
Stage of shistosomes infective to the mammals
Cercaria
Sexual intercourse is the only known mode of infection of this pathogenic flagellate
T. vaginalis
Mono-nucleated cysts with large iodine staining glycogen vacuole
I. butschlii
Non-pathogenic flagellate found normally in the tartar of the teeth
T. tenax
Non-pathogenic amoeba causing ““pyorrhea”” and the motile trophozoites exhibits finger like pseudopods
E. gingivalis
Most pathogenic amoeba of a man which can be diagnosed also with Indirect-Hemagglutination Agglutination test or maybe cultured with Balamuths medium
E. histolytica
Non-pathogenic limen-dweller with a characteristic spiral groove and curved cystosomal fibers more referred to as the American lemon shape cysts
C. mesnili
Pathogenic trophozoites engulfs RBC, has unidirectional movement and hyaline glassy pseudopodia
E. histolytica
Usual final hosts are the bovine species, a ciliate causing dysentery and resulting in colonic ulcerations
B. coli
Intestinal flagellate causing severe diarrhea due to malabsorption syndrome of fats and starch and the trophozoite stage shows the falling leaf motion
G. lamblia
