Parasitology MTAP Flashcards
1
Q
Artifacts found in a stool specimen that can be confused with ova or cysts are:
a partially digested meat fibers
b degenerated cells from the gastrointestinal mucosa
c dried chemical crystals
d pollen grains
A
d pollen grains
2
Q
Polyvinyl alcohol used in the preparation of permanently stained smears of fecal material:
a concentrates eggs
b dissolves artifacts
c serves as an adhesive
d enhances stain penetration
A
c serves as an adhesive
3
Q
Amethod to culture Acanthamoeba sp from corneal ulcer scrapings is to inoculate
a McCoy cells
b Novy, MacNeal and Nicolle (NNN) medium
c an agar plate overlaid with Escherichia coli
d Regan-Lowe medium
A
c an agar plate overlaid with Escherichia coli
4
Q
Primary amoebic encephalitis is caused by:
a Entamoeba coli
b Dientamoeba fragilis
c Endolimax nana
d Naegleria fowleri
A
d Naegleria fowleri
5
Q
Aformed stool is received in the laboratory at 10:30 pm for ova and parasite exam. The night shift technologist is certain that the workload will prevent examination of the specimen until 7 am when the next shift arrives. The technologist should:
a request that a new specimen be collected after 7 am
b hold the specimen at room temperature
c examine a direct prep for trophozoites and freeze the remaining specimen
d preserve the specimen in formalin until it can be examined
A
d preserve the specimen in formalin until it can be examined
6
Q
The advantage of thick blood smears for malarial parasites is to:
a improve staining of the organisms
b improve detection of the organisms
c remove RBC artifacts
d remove platelets
A
b improve detection of the organisms
7
Q
Multifocal brain lesions in AIDS patients are commonly caused by:
a Toxoplasma gondii.
b Pneumocystis jiroveci
c Cryptosporidium parvum
d Taenia solium
A
a Toxoplasma gondii.
8
Q
A 44-year-old man was admitted to the hospital following a 2-week history of low grade fever, malaise and anorexia. Examination of a Giemsa stain revealed many intra erythrocytic parasites. Further history revealed frequent camping trips near Martha’s Vineyard and Nantucket Island but no travel outside the continental United States. This parasite could easily be confused with:
a Trypanosoma cruzi
b Trypanosoma rhodesiense/gambiense
c Plasmodium falciparum
d Leishmania donovani
A
c Plasmodium falciparum
9
Q
A patient is suspected of having amebic dysentry. Upon microscopic examination of a fresh fecal specimen for ova and parasites, the following data were obtained: a trophozoite of 25 pm progressive, unidirectional crawl, evenly distributed peripheral chromatin finely granular cytoplasm. This information indicates:
a Entamoeba coli
b Entamoeba histolytica
c Endolimax nana
d lodamoeba biitschlii
A
b Entamoeba histolytica
10
Q
A liquid stool specimen is collected at 10:00 pm and brought to the laboratory for culture and ova and parasite examination. It is refrigerated until 10:10 am the next day, when the physician requests that the technologist look for amoebic trophozoites. The best course action of would be to:
a request a fresh specimen
b perform a concentration on the original specimen
c perform a trichrome stain on the original specimen
d perform a saline wet mount on the original specimen
A
a request a fresh specimen
11
Q
Small protozoan cysts are found in a wet mount of sediment from ethyl-acetate concentrated material. Each cyst has 4 nuclei that do not have peripheral chromatin, and fb each nucleus has a large karyosome, which appears as a refractive dot. These oval cysts are most likely:
a Endolimax nana
b Chilomastix mesnili
c Entamoeba histolytica
d Entamoeba hartmanni
A
a Endolimax nana
12
Q
The term “internal autoinfection” is generally used in referring to infections with?
a Ascaris lumbricoides
b Necator americanus
c Trichuris trichiura
d Strongyloides stercoralis
A
d Strongyloides stercoralis
13
Q
Proper collection of a sample for recovery of Enterobius vemqlculafls includes a
a 24-hour urine collection
b a first morning stool collection with proper preservative
c ascotch tape preparation from the perianal region
d peripheral blood from a finger
A
c ascotch tape preparation from the perianal region
14
Q
A fibrous skin nodule is removed from the back of a patient from Central America. A microfilaria seen upon microscopic exam of the nodule is most likely:
a Wuchereria bancrofti
b Brugia malayi
c Onchocerca volvulus
d Loa loa
A
c Onchocerca volvulus
15
Q
Human feces is not a recommended specimen in the detection of:
a Strongyloides stercoralis
b Entamoeba histolytica
c Echinococcus granulosus
d Ancylostoma duodenale
A
c Echinococcus granulosus
16
Q
The causative agent of cysticercosis is:
a Taenia solium
b Taenia saginata
c Ascaris lumbricoides
d Trichuris trichiura
A
a Taenia solium
17
Q
Organisms that can be easily identified to the species level from the ova in fecal specimens include:
a Metagonimus yokogawai, Heterophyes heterophys
b Taenia solium, Taenia saginata
c Necator americanus, Ancylostoma duodenale
d Paragonimus westermani, Hymenolepis nana
A
d Paragonimus westermani, Hymenolepis nana
18
Q
The preferred specimen for the diagnosis of paragonimiasis is:
a bile drainage
b blood smear
c skin snips
d sputum
A
d sputum
19
Q
A stool specimen for ova and parasite examination contained numerous rhabditiform larvae. Which factor(s) aid in the identification of larvae?
a larva tail nuclei and presence of sheath
b length of the buccal cavity and appearance of the genital primordium
c presence of hydatid cysts
d prominent kinetoplasts in trypomastigote
A
b length of the buccal cavity and appearance of the genital primordium
20
Q
Which one of the following routine tests for Entamoeba histolytica has the highest sensitivity and specificity?
a colonic ulcer biopsy
b stool microscopy
c stool EIA
d urine PCR
A
c stool EIA
21
Q
What is the principal means of distinguishing Entamoeba histolytica from Entamoeba hartmanni by light microscopy?
a size of trophozoite
b appearance of karyosome
c appearance of nuclear chromatin
d number of nuclei in cyst form
A
a size of trophozoite
22
Q
Which characteristic will identify lodamoeba butschlii ?
a nuclei in mature cyst
b small (5-10 um) size
c prominent vacuole in the cyst form
d presence of up to 8 nuclei in the cyst form
A
c prominent vacuole in the cyst form
23
Q
The only medically significant ciliate organism is:
a Acanthamoeba
b Balantidium coli
c Cryptosporidium parvum
d Chilomastix mesnili
A
b Balantidium coli
24
Q
Where do Plasmodium sporozoites proliferate?
a bone marrow
b liver
c red blood cells
d nucleated erythrocyte precursors
A
b liver
25
Individuals who lack the Duffy antigen on the surface of their red blood cells are protected against which species of Plasmodium?
a P vivax
b P falciparum
c P malariae
d P ovale
a P vivax
26
Which nematode produces eggs with characteristic hyaline polar
a Ascaris lumbricoides
b Necator americanus
c Strongyloides stercoralis
d Trichuris trichiura
d Trichuris trichiura
27
Which nematode has a characteristic mammillated bile staine
a Ascaris
b Necator
c Strongyloides
d Trichuris
a Ascaris
28
Which organism is predominantly responsible for visceral larva migrans
a Ancylostoma braziliensis
b Onchocerca volvulus
c Toxocara canis
d Trypanosoma brucei
c Toxocara canis
29
Which organism has the largest egg?
a Clonorchis
b Diphyllobothrium
c Fasciola
d Paragonimus
c Fasciola
30
The eggs of which species of Schistosoma can be isolated from urine
a S haematobium
b S japonicum
c S mansoni
d S stercoralis
a S haematobium
31
Which one of the following features of Taenia saginata helps distinguish it from T. Solium
a egg with a radially striated wall
b pork tapeworm
c proglottid with <13 uterine branches
d unarmed rostellum
d unarmed rostellum
32
Infection by this organism can cause of B12 deficiency:
a Diphyllobothrium latum
b Echinococcus granulosus
c Taenia solium
d Schistosoma mansoni
a Diphyllobothrium latum
33
This organism is responsible for hydatid cysts of the liver:
a Diphyllobothrium
b Echinococcus
c Hymenolepis
d Trichomonas
b Echinococcus
34
How is Trichomonas vaginalis transmitted?
a ingestion of cyst stage
b ingestion of trophozoite stage
c larval stage burrows through the skin
d sexual transmission
d sexual transmission
35
This parasite has the following characteristics: banana shaped gametocytes in RBCs multiple ring forms in RBCs all RBCs are infected. The identification of the parasite is:
a Plasmodium falciparum
b Plasmodium malariae
c Plasmodium ovale
d Plasmodium vivax
a Plasmodium falciparum
36
This parasite has the following characteristics: stains red with acid fast stain zoonotic transfer to humans spread by fecal-oral route. The most likely organism is:
a Cryptosporidium
b Giardia
c Naegleria
d Necator
a Cryptosporidium
37
Spiny filaments of locomotion of Acanthamoeba?
Acanthopodia (cause keratitis)
38
Eggs are peanut-shaped with striated shells and flattened bipolar plugs and infection is characterized by abdominal pain, chronic diarrhea and gurgling stomach
Capillaria philippinensis
39
Which is the infective form of the malarial parasite?
Sporozoite (infective stage of man)
40
Incorrect match between organism and characteristic morphology?
Trichuris-striated-non-protruding plugs
Correct: Trichuris-non-striated-bipolar mucus plugs
41
Find the incorrect match between organism and procedure
Ascaris-Harada Mori
Correct: Ascaris - DFS, Katokatz
Hookworm - Harada Mori
42
Infective stage of W. Brancofti?
3rd Stage larva (filiform-cause elephantiasis
43
The following are preventive and control measures of Entamoeba infection, except?
Vector Control (It does not have a vector)
44
All of the following characteristics are seen in the stool in amoebic dysentery, EXCEPT
Bacteria
45
Infective stage of Capillaria
Infective larva (ingestion of undercooked fish w/ larva)
46
Diagnosis of Trichomonas vaginalis infection can be established by?
Vaginal secretions and urethral secretions
47
A 15 um pear shaped Flagellate with a visible parabasal body and falling leaf motolity in a direct saline mount of a diarrheal stool specimen is most probably
Gardia lambia
48
Flagellate rod-like structure mainly for structural support
Axostyle (structure that supports flagellates)
49
Eggs that are bile stained?
F. Hepatica
A. Lumbricoides
T. Spiralis
Heterophyids
S. Japonicum
50
Ideally, a minimum of how many stool samples is collected for E. Histolytica assessment?
3 stool specimens collected on different days (important in diagnosing amoeba)
51
Only nematode that is known to present problems in immunocompromised individuals?
Strongyloides
52
Cyst of Gardia lambia
Are motile by Flagella (falling leaf motility)
53
Precursor of the infective larvae in D. Latum
Procercoid -> Infective: Plerocercoid
54
Relapse of malaria is not seen in infection with?
Plasmodium ovale > hypnozoites
55
Autoinfection is possible with the following parasites, EXCEPT
Trichuris (Capillaria, Enterobius, Strongyloides)
56
In which of the following parasites sexes are separate?
Taenia solium (Nematodes and Cestodes)
57
Quart an periodicity of malaria is seen in infection with?
Plasmodium vivax (Quartan periodicity with ovale, malariae, falciparum and knowlesi)
58
Free living amoeba that causes primary amoebic meningoencephalitis (PAM)
Naegleria fowleri (CSF - enters thru nasal mucus and thru the brain)
59
Reservoir host of Brugia malayi
Mosquito-Anopheles
60
Which of the following disease is close contact with an infected human host the most important mechanism of transmission?
Trichomoniasis (T. vaginalis - thru sexual contact)
61
The following are practical methods of parasite control, EXCEPT?
Immunization (usually it's treatment)
62
Harada-Mori technique is for
Hookworm and Strongyloides
63
The cysts of this parasite is infective stage to humans?
None
64
The factor considered for the number of cercariae development from one miracidium is dependent on?
pH of water
65
How many pairs of Flagella are present in the trophozoite of Gardia lambia?
Four
66
All of the following is cause by hookworm, EXCEPT?
Larval-lung maturation (Capillaria, Enterobius and Strongyloides)
67
Malaria infection can be transmitted thru
Bite of infected female anopheles mosquito
68
Anisakidosis can be controlled and prevented with the following measures, EXCEPT
None
Correct: Albendazole, Surgery/Remobal of larval stage
69
Which of the following parasites possess a particular hazard for immunosuppressed individuals?
Strongyloides stercoralis (and Cryptosporidium)
70
Trichuris dysentery syndrome is manifested by chronic dysentery and
Rectal prolapse (which is sever)
71
Autoinfection with Strongyloides stercoralis happens when?
Rhabditiform further develops into filariform larva in large intestine
72
All non-pathogenic amoeba live in the lumen of the large intestine, EXCEPT
E. Gingivalis (which is gums and teeth)
acquire AIDS and oral-related disease
73
Serves as the intermediate host in Capillaria infection?
Freshwater fishes (Brackish water)
74
Refers to the enlargement of one or more limbs, the scrotum, breast or vulva with dermal hypertrophy
Elephantiasis (W. bancrofti and B. malayi)
75
Katakana fever is produced by?
Schistosoma japonicum
76
True among amoeba, EXCEPT?
They all undergo encystations
77
This parasite secretes PI-3, a Pepsin inhibitor that protects the worm from digestion
A. Lumbricoides (from the gastric juices)
78
Drug of choice for the treatment of lymphatic filariasis
Diethylcarbamazine
79
Acanthamoeba infections are usually associated with
Use of contaminated lens solution (Keratitis)
80
A result of female Ascaris fertilization in the absence of a male
Unfertilized ova
81
Ova resemble like football shaped with protruding bipolar plugs
Trichuris (barrel shaped, lemon shape, football)
82
Pruritis in enterobiasis is possible due to
Migration of adult females in the anus (for oxygen requirement)
83
Causes travellers diarrhea
Gardia lambia
- Backpackers diarrhea
- Beavers fever
- Gay bowel syndrome
84
There are few procedures considered STAT in parasitology
Blood films for malaria
85
This amoebic cyst has an average size of 6-8 um and is usually spherical. When mature, it has four nuclei, but immature cyst with one or two nuclei are often seen. The cyst are smaller and trophozoites NEVER contain ingested RBC
Entamoeba hartmanni
86
Facts on E. Coli, EXCEPT
Motility is non-directional (sluggish and unidirectional)
87
Entamoeba gingivalis
Swab between gums and teeth
88
Diagnosis of toxocariasis in humans is diagnosed thru?
Detection of larvae from tissue sample (Toxocara canis)
89
A term used to describe the disease incidence that occurs simultaneously at very high frequency throughout the world is called?
Pandemic
90
Eggs are passed in the sputum in case of infection with
P. Westermani (lung fluke)
91
Stained thich blood film is for?
Initial assessment for the presence of parasite especially in low concentrate (quantification primarial assess)
92
The gold standard test in the diagnosis of E. Histolytica infection is?
Stool exam with iodine (cyst)
93
Nematodes does not have a free-living stage?
1. S. Stercoralis
2. A. Lumbricoides
3. T. Trichiura
4. E. Vermicularis
4 only
94
Host harboring parasites that are parasitic for humans and from which humans may become infected?
Intermediate hose
95
The developmental stage of Anopheles mosquito that is capable of penetrating it's stomach wall?
Ookinete (developmental stage)
96
The following are sources of E. Histolytica infection EXCEPT?
Sexual contact
97
Allows the flow of chyle into the urinary tract producing a milky urine. This is seen in severe condition of?
Filariasis (Urinary tract)
98
The only pathogenic intestinal flagellate
G. Lambia
99
Common specie of Plasmodium in the philippines
P. Vivax
100
Sabin-Feldman dye test is used for the diagnosis of
Toxoplasmosis > Disease
101
Which microfilariae are usually not found circulating in the peripheral blood smear?
Loa Loa (O. volvulus)
102
Which of the following is the most important feature in differentiating cyst of Entamoeba histolytica from E. Dispar?
Nucleic acid (PCR)
103
Technique where thick blood film is immersed in tap or distilled water until hemoglobin leeches out of the film?
Leeking (Dehemoglobinization)
104
Transformation from a cyst into a trophozoites
Excystation
105
Mature cyst of Entamoeba histolytica is
Quadrinucleate
106
Most common organ involved in extra intestinal amoebiasis is
Liver
107
Modified AFB staining, oocyst of Cryptosporidium parvum appear
Light to bright red
108
Which of the following parasite is NOT transmitted by eating raw or undercooked fish or crayfish?
S. Japonicum (skin penetration)
109
Facts of E. Histolytica EXCEPT
Bacteria numerous in cytoplasm
110
Cyst are the infective stage of this intestinal flagellate
Giardia lambia (cyst=4 nuclei and nonmotile)
111
The following are advantages of Kato-Katz, EXCEPT
Useful in field data where plente of samples are collected and examine (time consuming-useful in quantification)
112
For the detection of E. Histolytica trophozoites, the recommended span of time of analysis is?
2 hours from defecation
113
All are non-pathogenic amoeba that lives in the same habitat. EXCEPT
Entamoeba gingivalis - gums and teeth
114
The resting stage of malaria parasite is know as
Hypnozoite (ovale & vivax= relapse-dormant stage)
115
Cercaria is the infective stage of
S. Haematobium (metacercaria>rest of the trematodes)
116
Blood samples for filarial diagnosis is best taken during which of the following
Before the expected fever of the patient
117
Can be airborne in transmission
Enterobius > airborne
118
Cyst of Entamoeba histolytica are formed in?
Lumen of the intestine (large intestine)
119
What is the best anticoagulant (venipuncture) to use in blood specimen for the assessment of blood parasite
EDTA
120
All of the following worms lay bile stained eggs EXCEPT
Ancylostoma duodenale (HOOKWORM)
121
Common among people with poor oral hygiene
Entamoeba gingivalis
122
Adult worms of the following Cestodes are seen in the intestine of the man, EXCEPT
D. Caninum (tissue of dog)
123
Maurer's dots in RBC are seen in infection with
Plasmodium falciparum
124
Which is the smallest tapeworm infecting man?
H. Nana
125
Entero-test/String test is useful for the identification of which of the following parasites?
Gardia lambia
126
The ova of this parasite can usually contaminate underwear and bed linens?
Enterobius (itchy at night)
127
Cagas disease (American trypanosomiasis) is caused by?
Trypanosoma cruzi (DR. CHAGAS)
128
Development from trophozoite into cyst
Encystation
129
A host harboring a parasite without multiplication
Paratenic host
130
MOT of Trypanosoma cruzi
At blood meal of sandflies
131
Facts of E. Nana, EXCEPT
Maximum number of nuclei-8 (usually 4)
132
The following parasites require soil in the developmental and transmission of parasite, EXCEPT
Pudoc worm (C. Philippinensis) freshwater fish
133
Parasite causes disease by tissue lysis or lytic necrosis
E. Histolytica (necrosis)
134
In which of the following cestodes man can act as intermediate host?
T. Solium
135
diarrhea in AIDS patients is caused by?
Cryptosporidium parvum
136
Operculated eggs are produced by
D. Latum
137
The agent of Chagas disease?
- Kissing Bug
138
Human infection with larva stage of Solium?
- Cysticercosis
139
Adult Schistosome that resides in the inferior mesentery vein?
- S. mansoni
140
A case of fish nematode infection that can be recovered during endoscopy?
- Anisakis
141
The female worm migrates to the skin surface producing blister and diagnosis is made by finding the female ‘worm emerging in the skin at the surface with larva in the discharge fluid?
- Dracunculus medinensis
142
Ciliated trematode larva is capable of penetrating the tissue snail host?
- Miracidium
143
Development of Cholangiocarcinoma?
- Clonorchis sinensis
144
The egg has the characteristics flattened operculum, can be isolated in the stole or the sputum?
- Paragonimus westermani.
145
The egg has resemblance with trichuris with gurgling stomach?
- Capillara pilipinensis
146
Pear-shaped organism, exhibiting falling-leaf motility?
-Gardia
147
The presence of protozoan commonly in vacuolar form and the nuclei are found in the periphery?
- Blastocystis hominis
148
Toxoplasma gondii infection can be acquired through the ingestion of ?
- Both (Oocysts and Tissue Cysts)
149
A disease affecting the reticuloendothelial system which you can find the amastigote and promastigote forms?
- Leishmania
150
The fusion of the male and the female gametocyte occurs in what host?
- Definitive host
151
The identifying malarial parasite on the thin blood film one should look in the following except?
- Appearance in the infective WBC
152
17-20. Infected Stages of the Parasite
17.Hymenolipis nana -
18. Necator Americanus-
19. Taena spp. -
20. Capillaria philippinensis-
17.Hymenolipis nana - embryonated egg
18. Necator Americanus- filari form
19. Taena spp. - Cysticercus
20. Capillaria philippinensis- Infected larva
153
The helminth with a buccal orifice with three lips?
- Adult ascaris
154
Find the incorrect systoms and diagnosis
- Iron deficiency anemia for D.latum (because it is pernicious anemia)
155
Match the Parasite to its corresponding characteristics.
23. Presence of operculum-
24. Sensitive to alcohol-
25.The only human tapeworm that completes its life cycle in the single host-
26.Resembling like a whipworm-
23. Presence of operculum- D.latum
24. Sensitive to alcohol- Taena saginata
25.The only human tapeworm that completes its life cycle in the single host- H.nana
26.Resembling like a whipworm- Trichuris trichura
156
Match the following parasite its corresponding intermediate host.
27.Cyclops-
28. Sheep-
29.Human-
30.Insect-
27.Cyclops- D.latum
28. Sheep- Echinococcus
29.Human- T.solium
30.Insect- H.nana
157
Causing protracted diarrhea among immunocompromised individuals such as those with AIDS except?
- Chilomastix mesnili
158
What is the drug of choice in the treatment of tapeworm infection?
- Praziquantel
159
What do you call a layer of cells between the plasma and the red blood cell after centrifugation?
- Buffy coat
160
Choose the correct match of specie intermediate host diagnosis
- H.diminuta- Flee- Direct fecal smear
161
Parasitic autoinfection with specie of hymenolepis happens when
- Embryonation of egg into the intestine.
162
Find the incorrect match in the organism and characteristic morphology
- Hymenolepis egg with striated shell
163
Blood samples for filarial diagnosis maybe taken during which of the following?
- Dependent on the specie of the parasite
164
Incorrect match between the organism and procedure?
All are correct
165
Sheep microfilariae, numerous nuclei contain in the body, cephalic end is blunt and round, and tail-end culminates in a point that is free of nuclei
- Wuchereria bancrofti
166
The term gravid means?
-Pregnant
167
All of the following can possible be acquired by a sexual contact except?
- None
168
the only representative pathogenic celiate has the following or correct morphology/traits
- Celia serve as the organelles of motility
169
The only nematode that is known to present problems among individual
- Strongyloides
170
Cresent shapes, two-sides
- P.falcifarum
171
Incorrect match between organism and the appropriate diagnostic procedure
- Cryptosporidium giemsa (correct is modified acid fast stain)
172
The following are advantages of Kato-katz except
- Hookworm egg is best isolated (hookworm egg will disintegrate)
173
A parasite that appeared as rounded globular jerky tumbling motility
- Trichomonas vaginalis
174
Diagnosis of Trichomonas vaginalis infection can be established by the following
-All
175
Lectins of Gardia lambia once activated is able to facilitate attachment?
- intestinal cells
176
Least likely to contain vaginalis
- Stool
177
A parasite which is originally describe as an amoeba but it is actually a flagellate
- Dientamoeba fragilis
178
Diagnosis of Babesiosis
- look to intraerythrocytic parasite in the giemsa stain blood film
179
Encysted metacercariae in pickled undercooked fresh water fish ingested human host may transmit this
- Clonorchis sinensis
180
The limiting factor for the number of cercariae that develops from one miracidium of your japonicum is attributed to
- The size of the snail host
181
Classified as pseud parasitic infection, the body will not manifest any disease
- Spurious
182
Which of the following statement is true
- All trematodes require two intermediate host except for your Schistosomes
183
Which of the following is correctly match with the second intermediate host?
- Paragonimus and Sundathelphusa
184
Effective means in controlling the transmission of clonorchiasis
- Irradiate the fish
185
Identify the specie of parasite with their associated AKA
61. Capillaria-
62. Dracunculus-
63.Echinococcus-
64. Schistosoma haematobium-
61. Capillaria- Pudoc worm
62. Dracunculus- Fiery serpent
63.Echinococcus- Hyadid worm
64. Schistosoma haematobium- Bladder worm
186
Which of the following parasite is not transmitted by eating raw or undercook fish
- Echinostoma ilocanum (its via the snail)
187
Which of the following statement is diagnostic of amoebiasis?
- trophozoite that will ingest red blood cell
188
Transformation for the cysts into trophozoite occurs where?
- Small intestine
189
Identify the parasite: Glanders pseudopodia, sluggish, undirected movement, and more vacuolated but with no red blood cell
- E.coli
190
Free-living pathogenic amoeba penetrating by nasal mocusa, migrate to the brain through the olfactory nerve causing what type of infection?
- PAM (Primary amebic meningoencephalitis)
191
Considered as the Gold standard means of diagnosing Trichomonas infection?
- Culture
192
How many stages is involved in classical malarial paroxysm
-3 only
193
What is the Gold standard test in assessing malaria?
- Blood smear (thick and thin)
194
Presence of 6 to 12 merozoites in rosette
- Malariae
195
Which are the STH (Soil Transmitted Helminths) except -
None
196
Quantitative diagnosis in terms of the intensity of helminth infection
- Kato-Katz
197
77.Treatment of Ascaris infection can be made with a dose of the following broad spectrum anti-helminthic drugs except
- Praziquantel
198
Common symptom of Paragonimus infection
- Chest pain, chronic cough, and hemoptysis
199
Hookworm infection involves the following sites of the body except
- Liver
200
This allows the hatching of the larva utilizing your filter paper
- Harada-Mori technique
201
Indicate the parasite which may cause human liver infection
- Fasciola hepatica
202
A comprehensive control of STH infection
- WASH
203
True among Stercoralis where the female produce eggs without fertilization
- Parthenogenesis
204
Intractable, painless intermittent diarrhea accompanied by watery and bloody stool
- Cochin-china
205
The female worm migrates to the perianal area, one side is flattened, while the other side is convex
- Enterobius
206
A symdrome experience with body fatigue, malaise, fever reffered to as a snail fever
- Katayama fever (cause by Japonicum)
207
Wuchereria in the pheripheral blood circulation where it is pick up and ingested by the appropriate mosquito vector during a blood myth
- Microfilariae
208
What is being release when your Saginata egg are ingested by catodes
- Oncosphere
209
Human cysticercosis occurs in infection with
- Taenia solium
210
The indirect cycle of H.nana is usually via
- The ingestion of the intermediate host
211
Mode of transmission of heterophyes
- Fish carrying the Metacercariae
212
92.The natural release of cercaria for Schistosome usually happens at
- Night time
213
Hepatica and Fasciolopsis look very much alike with the ova of
- Fasciola gigantica
214
How do you assess Taenia saginata
- Saline
215
Morphological forms of pinworm that can be isolated using Scotch tape?
- Adult and Egg
216
Which among the rhabdi larva of the intestinal helminth has a longer buccal cavity
- Hookworm
217
Among the choices, which is viviparous
- Trichinella
218
The vector responsible in carrying medinensis which can be ingested by human in contaminated drinking water
- Cyclops
219
The following stages in the life cycle of fluke occurs in the snails tissue except
- Metacercaria
220
Which among the snail becomes the second intermediate host of locanum
- Susong pampang and kuhol
221
FACTS about Sarcoptes scabei mites:
A. Create tunnels through the upper layers of the skin
B. May cause generalized dermatitis among immunocompromised individuals
C. Transmission is via person-to-person contact
D. A, B, C
E. gstic stage includes the egg, filariform larva, and adults
D. A, B, C
222
Transmits the agent of Chagas’ disease in the feces, which is secondarily inoculated into the skin by the U human host while scratching
A. Bedbug
B. Tsetse fly
C. Kissing Bug
D. Sandfly
E. Deer tick
C. Kissing Bug
223
3.Indicates human infection with the larval stage of Taenia solium following ingestion of the eggs of the adult worm
A. Hydatid sand
B. Cysticercosis
C. Microsporidiosis
D. Hydatidosis
E. Sparganosis
B. Cysticercosis
224
Adult schistosome that resides in the inferior mesentericvein.
A. S. haematobium
B. S. mansoni
C. Both
D. S. japonicum
E. S. mekongi
B. S. mansoni
225
A case of fish nematode infection where the worm can be recovered through endoscopy causing acute abdominal pain.
A. Capillaria
C. Hymenolepis
B. D. latum
D. Chlonorchis
E. Anisakis
E. Anisakis
226
The female worm migrates to the skin surfaces producing blisters usually on the lower extremities where diagnosis is made by finding the female worm emerging at the skin sirface with larvae in the discharge fluid.
A. Trichinella
C. Strongyloides
E. Hymenolepis
B. Ancylostoma
D. Dracunculus
D. Dracunculus
227
Ciliated trematode larva which is capable of penetrating the tissues of snail hosts. Identity is:
A. Miracidium
B. Cercarium
C. Metacercarium
E. Procercoid
D. Plerocercoid
A. Miracidium
228
Development of cholangiocarcinoma has been linked with this parasite and to which the egg appears small, brown in color, embryonated with prominent operculum and a small knob at the abopercular end.
A. F. buski
C. F. hepatica
B. S. japonicum
D. Heterophyid
E. C. Sinensis
E. C. Sinensis
229
The egg has a characteristic flattened operculum and set off from the rest of the shell by prominent shoulders with thick abopercular end and can be isolated in stool and sputum
A. C. sinensis
B. P. westermani
D. latum
E. Echinostoma
D. Hymenolepis
B. P. westermani
230
The egg has resemblance with Trichurls causing chronic diarrhea, gurgling stomach, and normally found in fish-eatin birds
A. Enterobius
C. Capillaria
B. Hookworm
D. Strongyloides
E. Ascaris
C. Capillaria
231
A Pear-shaped organism with the presence of sucking disk in its ventral surface exhibiting falling leaf motility.
A. Chilomastix mesnili
B. Balantidium coli
C. Giardia lamblia
D. Trichomonas vaginalis
E. Dientamoeba fragilis
C. Giardia lamblia
232
The presence of this protozoan commonly in vacuolar form should be reported especially when they are seen numerous in the microscopic field and appears as spherical with distinct nuclei found in the periphery.
A. Blastocystis hominis
C. Dientamoeba fragills
E. Entamoeba coli
B. lodamoeba utschlii
D. Entamoeba hartmanni
A. Blastocystis hominis
233
Toxoplasma gondii infection can be acquired through ingestion of:
A. oocyst
B. Tissue cyst
C. Both
D. Blood transfusion
E. All
C. Both
234
disease affecting the reticuloendothelial system and transmitted by sandflies and take on the amastigote and promastigote forms.
A. T. Cruzi
B. Leishmania
C. T. Brucei
D. T. Vaginalis
E. A & c
B. Leishmania
235
The fusion of the male and female gametocytes resulting in the formation of the ookinete occurs in:
A. Definitive host
B. Intermediate host
C. Spurjous host
D. Paratenic host
E. Phoretic host
A. Definitive host
236
In identifying malarial parasites on thin blood film, one should look into the following, EXCEPT;
A. Appearance of infected RBCs
D. Appearance of the parasite
B. Varieties of developmental stages in the blood
E. None
C. Appearance of infected WBC
C. Appearance of infected WBC
