Sir Edel’s Sample Questions Flashcards
If a susceptible host harbors the parasite inside his body, the host is said to be _________
A. Infested
B. Infected
C. Non-permissive host
D. Not affected
A. Infected (inside)
Which pair of protozoan is matched based on the presence of glycogen vacoule?
A. B. hominis and B. coli
B. E. coli and B. coli
C. B. hominis and I. butschlii
D. E. histolytica and E. nana
C. B. hominis and I. butschlii
Infective stage of T. vaginalis to man
A. Mature cyst
B. Pre-cyst
C. Metacyst
D. None of the above
D. None of the above (T. vaginalis has NO encystation)
“Strawberry cervix” is caused by one of the parasitic agent below
A. T. vaginalis
B. E. histolytica
C. N. gonorrhea
D. T. hominis
A. T. vaginalis
Skin penetration is not the mode of transmission of this parasite
A. Hookworm
B. Threadworm
C. Malaria
D. Schistosome
C. Malaria (Vector is the mode of transmission)
Formalin Ethyl Acetate technique is useful for the recovery of:
A. Trophozoite
B. Cyst
C. Trypomastigote
D. Sporozoite
B. Cyst
Indentation or opening found in the posterior end of B. coli is called?
A. Cytopyge
B. Acetabulum
C. Cytostome
D. Gonotyl
A. Cytopyge (posterior, anus-like structure)
True or False
Steatorrhea is the presence of more than 5 grams of fats in stool and this is common in Balantidiasis
False it is common in Giardiasis
True or False
Cytostomal fibril is found in C. mesnili
True since cytostomal fibril means imbeded in cytostome and C. mesnili is a flagellate
True or False
Antigen-antibody testing is the gold standard for the detection of T. vaginalis
False since the gold standard for T. vaginalis is culture (diamond medium)
The type of host that harbors the sexual stage of parasite is termed as:
A. Definitive host
B. Intermediate host
C. Reservoir host
D. Paratenic host
A. Definitive host or Final host
What are the solutions use din Direct Fecal Smear?
A. Water and formalin
B. Acetic acid and Ether
C. NSS and Lugol’s iodine
D. Glycerol and water
C. NSS and Lugol’s iodine (use NSS first followed by Lugol’s iodine)
The helminth that may cause severe anemia in heavy worm infection
A. Society worm
B. Threadworm
C. Hookworm
D. Trichina worm
C. Hookworm (treat anemia first before the hookworm)
The following sexual stage of nematodes parasitize the small intestinal tract of humans except:
A. Trichuris trichiura
B. Ascaris lumbricoides
C. Trichinella spiralis
D. Necatir americanus
A. Trichuris trichiura (large intestine and causes rectal prolapse)
The following pathology is associated with animal hookworm larva
A. Malnutrition
B. Larva migrans
C. Pneumonitis
D. Anemia
E. All of the above
B. Larva migrans since animal hookworm larva is a cutaneous larva migrans which cannot penetrate the stratum germinativum or stratum basale
The longest intestinal nematode is
A. A. lumbricoides
B. T. trichiura
C. C. philippinensis
D. D. medinensis
A. A. lumbricoides is the longest INTESTINAL NEMATODE
D. medinensis may be the longest among the choices however it is NOT an INTESTINAL NEMATODE
The trematode that is dioecious
A. Chinese liver fluke
B. Intestinal fluke
C. Lung fluke
D. Pancreatic fluke
E. None of the above
E. None of the about since the trematode that is dioecious is Schistosoma spp.
This is not present in the life cycle of schistosome
A. Miracidia
B. Metacercaria
C. Cercaria
D. A and B
B. Metacercaria
The ideal sample in diagnosing paragonimiasis in developing countries like the Philippines
A. Serum
B. Feces
C. Sputum
D. B and C
E. All of the choices
C. Sputum is the IDEAL SAMPLE while feces is the alternative sample especially in children
Serological test utilizes shistosome egg as source of antigen
A. Casoni
B. Bachmann
C. COPT
D. Xenodiagnosis
C. COPT or circumoval precipitin test
True or False
D. fragilis are hypothetically be co-exist with A. lumbricoides
True as well as it can co-exist with Enterobius vermicularis
True or False
Cilia are absent in the cystic stage of B. Coli
True however it is still inside the cyst
Zoonotic protozoan transmitted via tick bite (Ixodes sp.) and often confused for P. falciparum
A. Babesia microti
B. T. gondi
C. T. cruzi
D. L. donovani
A. Babesia microti (tick bites)
Congenital transfer is possible for this protozoan
A. E. histolytica
B. T. hominis
C. T. gondii
D. T. tenax
C. T. gondii has a lot of mode of transmission including ingestion of oocysts, ingestion of raw or rare meat from infected host, TRANSPLACENTAL, transfusions, transplants, and transmammary
Toxoplasma gondii is a parasite of:
A. Feline
B. Canine
C. Bovine
D. Avian
A. Feline
Espundia is caused by one of the agents below
A. L. mexica
B. L. braziliensis
C. L. donovani
D. L. tropica
B. L. braziliensis since Espundia is the erosion of the nose
Anopheles sp. transmits what stage of protozoan parasite?
A. Gametocyte
B. Amastigote
C. Trypomastigote
D. Sporozoite
D. Sporozoite is the infective stage of malaria in man
Identify the characteristic of Quartan malaria mature schizonts
A. Band formation
B. Compact
C. Rosette appearance
D. Fimbriated
C. Rosette appearance
The scolex of this parasite has an almond shape and a slit like sucker
A. D. latum
B. T. saginata
C. H. nana
D. A and B
A. D. latum scolex is spatulated or spoon-like with 2 slit-like grooves called bothrium
First intermediate host of D. latum
A. Snail
B. Prawn
C. Crab
D. Fish
E. Copepod
E. Copepod
In ruling out tuberculosis, sputum is stain with _____
A. Crystal violet-safeanin
B. Iodine-NSS
C. Carbol-fuchsin-methylene blue
D. India Ink-Carmine dye
E. Any of the choices
C. Carbol-fuchsin-methylene blue
Which of the following is not included in the group habitat?
A. E. ilocanum
B. F. buski
C. A. malayanum
D. F. gigantica
E. M. yokogawai
D. F. gigantica is in the liver while the other choices are in the intestine
Morphologically similar to E. histolytica
A. E. coli
B. E. dispar
C. E. hartmanii
D. None of the choices
B. E. dispar similar morphologic characteristics with E. histolytica and can be differentiated by means of molecular testing or PRC
Stage of shistosomes infective to the mammals
A. Cercaria
B. Sporocyst
C. Egg
D. Miracidium
E. Adult
A. cercaria
Prominent bipolar mucoid plugs is/are present in the ova this parasite
A. Pudoc worm
B. Whipworm
C. Trichina worm
D. Threadworm
B. Whipworm or Trichuris trichiura
Fertilization of malarial microgametocyte will result to the development of:
A. Zygote
B. Cytozoite
C. Hypnozoite
D. Cyst
A. Zygote
The specimen of choice in the diagnosis of rat lung worm
A. Rat muscle tissue
B. Cerebrospinal fluid
C. Stool sample
D. Sputum sample
B. Cerebrospinal fluid
This drug is useful to treat trematode infection
A. Ivermectin
B. Albendazole
C. Metronidazole
D. Praziquantel
D. Praziquantel - treat trematode
Ivermectin - treats Strongyloides and Filaria
Albendazole- treats common intestinal parasites
Metronidazole - treats amoebic infection
Protozoan with characteristic cork-screw like motility
A. C. mesnili
B. T. vaginalis
C. G. intestinalis
D. B. coli
A. C. mesnili - corkscrew like or boring motility
T. vaginalis - jerky tumbling motility
G. intestinalis - falling leaf motility
B. coli - thrown ball-like motility
Which of the following is the mode of transmission of the agent of Diphyllobothriasis?
A. Contact transmitted
B. Vector borne
C. Food borne
D. Soil teansmitted
C. Food borne
The most effective approach in parasitic disease prevention
A. Environmental sanitation
B. Proper waste disposal
C. Handwashing
D. Education and information
D. Education and information (always the most effective approach)
Flash shaped ulcer is a common complication of what parasitic infection?
A. Amoebiasis
B. Giardiasis
C. Malaria
D. Balantidiasis
A. Amoebiasis
Malaria parasite that prefers to infect young red blood cells
A. P. falciparum
B. P. vivax
C. P. ovale
D. P. malariae
B. P. vivax
P. falciparum - any RBC
P. malariae - adult RBC
The intermediate host of Plasmodium falciparum
A. Man
B. Dogs
C. Cats
D. Cattle
A. Man is the intermediate host while mosquito is the final host
The causative agent of dysentry like diarrhea
A. E. histolytica
B. G. lamblia
C. B. coli
D. E. nana
C. B. coli (ulceration or dysentery-like disease are caused by the trophozoite stage since they are invasive)
A rhythmical cycle of fever, chills, and sweating is observed in what parasitic infection?
A. Amoebiasis
B. Giardiasis
C. Malaria
D. Trichomoniasis
C. Malaria (Fever, chills, and sweating)
The following can be transmitted through blood transfusion except?
A. P. vivax
B. T. gondii
C. T. vaginalis
D. B. microti
C. T. vaginalis since it is only transmitted via the genitourinary tract
