parasitology Flashcards
(173 cards)
1
Q
pseudopod forming protozoa
A
entamoeba histolytica
2
Q
nonflagellated protozoa
A
entamoeba histolytica
3
Q
brownian movement
A
entamoeba histolytica
4
Q
most invasive entamoeba
A
histolytica
5
Q
diagnostic stage of entamoeba in NON DIARRHEAL STOOL
A
Cyst
6
Q
diagnostic stage seen in diarrheal stool and intestinal and extraintestinal lesions (entamoeba)
A
trophozoites
7
Q
(e. histolytica)
contain ingested RBCs
erythrophagocytosis
A
trophozoites
8
Q
mediate adherence in e. histolytica
A
lectin
9
Q
penetration in e. histolytica
A
amebapores
10
Q
cytopathic effect in e. histolytica
A
cysteine protease
11
Q
flask shaped colon ulcer
A
ameboc colitis
12
Q
granulomatous lesion that may form in the CECAL and RECTOSIGMOID
A
amoeboma
13
Q
MC extraintestinal form of entamoeba
A
amebic liver abscess
14
Q
MC site of amebic liver abscess
A
posterosuperior of right lobe
scwartz: superoanterior
15
Q
DOC asymptomatic cyst state in e. histolytica
A
diloxanide furoate
iodoquinol
paromomycin
16
Q
doc amebic colitis
A
metronidazole
tinidazole
diloxanide furoate
paromomycin
17
Q
doc amebic liver abscess
A
metronidazole
tinidazole
percutaneous drainage for non responders
18
Q
flagellates in duodenum, jejunum and upper ileum
A
giardia
19
Q
falling leaf motility
A
giardia
20
Q
infective stage e histolytica
A
mature cyst
21
Q
infective stage of giardia
A
cyst
22
Q
infective stage of giardia found in diarrheal form
A
trophozoite
23
Q
infective stage of giardia found in diarrheal form and formed stool
A
cyst
24
Q
pear shaped with 2 nuclei 4 pairs of flagella 1 suction disc all of which attach to intestinl wall
A
trophozoite Giardia
25
Giardia: facilitate attachment and avoid peristalsis
adhesive disc and lectin
26
excessive flatus, rotten egg smell
no fever and non bloody stool
chronic
weight loss malabsorption and STEATORRHEA
Giardia
27
doc giardia
metronidazole
28
test used in Giardia
string test
29
autoinfection in immunocompromised patients
cryptosporidium parvum
30
acid fast protozoa
cryptosporidium parvum
31
infective stage of cryptosporidium parvum
thick walled cyst
32
infective stage cryptosporidium parvum
thick walled cyst
33
pathogenesis of cryptosporidium parvum
excystion
| no invasion
34
mc site cryptosporidium parvum
jejunum
35
doc cryptosporidium parvum immunocompetent
nitazoxanide
36
cryptosporidium parvum immunocompromised
no drug tx
paromomycin to reduce diarrhea
37
only ciliated protozoan causing human disease
balantidium coli
38
largest protozoan parasite of humans
balantidium coli
39
balantidium coli infective stage
cyst
40
v shaped nucleus
balantidium coli
41
balantidium coli dx stage
ciliated trophozoite
| large cyst with v nucleus
42
round based, wide necked intestinal ulcer in the colon
balantidiasis
43
doc balantidium coli
tetracycline
alt: metronidazole
44
exist only as trophozoite
trichomoniasis
45
pear shaped,
| flagellated trophozoite with JERKY MOTION
trichomoniasis
46
PING PONG transmission
trichomoniasis
47
infective stage trichomoniasis
trophozoite
48
dx stage trichomoniasis
trophozoite
49
doc trichomoniasis
metro
50
morphologically similar to e histolytica but their DNA and rRNA are different
e. dispar
51
similar to e. histolytica but no ingestion of rbc and are smaller
e. hartmanni
52
larger cyst and greater number of nuclei than e histolytica
entamoeba coli
53
parasite in pigs and monkey, cyst is uninucleated
e. polecki
54
no cyst stage, does not inhabit intestines, thru kissing
e. gingivalis
55
commensal amoeba small size, sluggish movement
endolimax nana
56
commensal amoeba, no peripheral granules on nuclear membrane
iodamoeba butchlii
57
asexual life cycle in malaria
scizogony
| gametogony
58
sexual life cycle of malaria
sporogony
59
screein for presence of microorganism in malaria
thick smear
60
species identification malaria
thin smear
61
best yield of organisms in malaria
peak of fever or 2-3 hrs after pear
62
pathologic findings of malaria is due to
rbc destruction
63
partial immunity due to
humoral immunity that blocks merozoites from invading the red cells
64
durck granuloma
cerebral malaria
65
septic shock in malaria
algid malaria
66
malaria
recurrence of symptoms after a temporary abatement
usually 2-4 weeks
recrudecence
67
malaria
| organisms that exhibit recrudecence
falciparum
| p. malaria
68
return of disease after 1- 6 months
relapse
69
organisms that relapse
ovale
| vivax
70
infected rbc with 1-2 small chromatin dots
falciparum
71
infected rbc with presence of ring form stage only
falciparum
72
infected rbc with band form stage
p. malaria
73
schuffner; punctate dots
vivax
| ovale
74
maurer dots
| coarse granulation
falciparum
75
ziemann fine dots
p. malaria
76
benign quartan
p. malaria
77
banana shaped gametocytes
falciparum
78
compact gametocytes
p. malaria
79
large round gametocytes
p. vivax
80
small round gametocytes
p. ovale
81
affects all ages of rbc
falciparum
82
affect old rbc
p. malaria
83
young rbc
ovale, vivax
84
doc for chloroquine sensitive falciparum and malaria
chloroquine
85
doc for vivax and ovale
chloroquine plus primaquine
86
infective stage of mosquito sa malaria
gametocytes
87
doc for chloroquine resistant falciparum
quinine plus doxycycline and clindamycin
88
severe or complicated infections with p falciparum
artesunate plus doxy/ clindamycin
89
eradication of hypnozoite
primaquine
90
tx for pregnant with malaria
quinidine/ quinine
91
prophylaxis in areas withour resistant p falciparum
chloroquine
92
prophylaxis in areas with chloroquine resistant falciparum
malarone, mefloquine
93
areas with multidrug resistant falciparum
doxycycline
94
terminal prophylaxis of vivax and ovale
primaquine
95
drugs against gametocytic form
primaquine
96
drug effective against exoerythrocytic form
primaquine
97
form of malaria in the liver
merozoite
98
definitive host of toxoplasma
cat
99
toxoplasma infective stage
fecal oocyte
100
toxoplasma diagnostic stage
trophozoites (bradyzoite)
101
IgM antibodies detected in
toxoplasmosis
102
crescent shaped trophozoites
toxoplasmosis
103
rapidly multiplying
| seen in body fluids in early, acute infections
tachyzoites
104
slowly multiplying
| cysts in muscles, brain and eye
bradyzoites
105
doc toxoplasmosis
sulfadiazine plus trimethoprim
106
vector of leishmaniasis
sandfly
phlebotomus
Lutzomyia
107
leishmaniasis infective stage
promastigote
108
leishmaniasis diagnostic stage
amastigote (non flagellated amastigote)
109
cutaneous leishmaniasis
L. tropicana
| L. Mexicana
110
mucocutaneous leishmaniasis
L. brazileiensis
111
Visceral leshmaniasis
L. donovani
112
oreintal sore
cutaneous L
113
espundia
mucocutaneous L
114
Kala azar
visceral L
115
ulcerating single or multiple skin sores
cutaneous L
116
parasite at mucosal dermal junction
mucocutaneous L
117
infects macrophages--> hepatosplenomegaly
visceral L
118
DOC leishmaniasis
sodium stibogluconate
2nd line
ampo B
pentamidine
119
ring shaped trophozoite
babesia
120
maltesse cross
babesia
121
vector of babesia
ixodes tick
122
no exoerythrocytic stage
babesia
123
inluenza like symptoms
anemia
hepatosplenomegaly
babesia
124
doc mild to moderate babesia
atovaquone plus azith
125
doc severe babesia
quinidine plus clindamycin
126
spherical oocyst in a modified acid fast stain of a stool sample
cyclospora cayetanensis
127
watery diarrhea in both immunocompetent and immunocompromised
cyclospora cayetanensis
128
doc for cyclospora cayetanensis
trimethoprim sulfamethoxazole
129
doc for isospora belli
trimethoprim sulfamethoxazole
130
infective and diagnostic stage of isospora belli
oocyst
131
causes destruction of brush borders
isospora belli
132
infective stage of trypansoma cruzi
metacyclic trypomastigote
133
diagnostic stage of trypansoma cruzi
trypomastigote
134
diagnostic tests for trypanozoma cruzii
BM or muscle biopsy
135
acute phase trypanozoma cruzii
chagoma
| ROMANA SIGN
136
chronic phase trypanozoma cruzii
megacolon
megaesophagus
secondary achalasia
137
mcc of death trypanozoma cruzii
cardiac arrhythmia/ CHF
138
Most severely affected tissue in trypanozoma cruzii
cardiac muscle
139
doc for acute trypanozoma cruzii
nifurtimox
2nd line: benznidazole
140
vector of trypanozoma cruzii
reduviid bug (feces) (painless bite)
141
protozoa that has remarkable antigenic variation of their surface glycoproteins
trypanosoma brucei
142
from painful bite of tsetse fly
trypanosoma brucei
143
infective stage trypanosoma brucei
metacyclic trypomastigote
144
diagnostic stage trypanosoma brucei
trypomastigote
145
cyclical fever spike
trypanosoma brucei
146
cyclical fever spike in trypanosoma brucei is due to
antigenic variation
147
somnolence in trypanosoma brucei is due to
demyelinating encephalitis
148
initial lesion in trypanosoma brucei
trypanosomal chancre
149
winterbottom sign- posterior cervical lymphadenopathy
trypanosoma brucei
150
kerandell sign
trypanosoma brucei
151
morula cells of mott
trypanosoma brucei
152
mc in west africa
T.B gambiense
153
mc in east africa
T.B. rhodisiense
154
low garde chronic course
T.B gambiense
155
T.B gambiense is caused by
glossina palpalis
| riverine tsetse
156
treatment of T.B gambiense
stage 1-pentamidine, Suramin
| stage 2- eflornithine, melarsoprol
157
more acute, rapidly progressing trypanosomiasis
T.B. rhodisiense
158
tx of T.B. rhodisiense
suramin --> melasoprol
159
T.B. rhodisiense is caused by
glossina morsitans
160
free living ameba; most common protist in soil
acanthameba castellani
161
infective stage of acanthameba castillani
trophozoite
162
usually seen in contact lens users--> keratitis
acanthameba castillani
163
causes granulomatous amebic encephalitis
acanthameba castillani
164
swimming in freshwater lakes
naegleria fowleri
165
naegleria fowleri infective stage
trophozoite
166
naegleria fowleri trophozoites penetrate the__
nasal mucosa and cribriform plate
167
causes primary amebic meningoencephalitis
naegleria fowleri
168
tx of naegleria fowleri
ampothericin B
169
DINOFLAGELLATES
| paralytic
saxitoxin
170
DINOFLAGELLATES
| neurotoxic
brevetoxin
171
DINOFLAGELLATES
| diarrhetic
okadaic
172
DINOFLAGELLATES
| amnesis
domoic
173
tx DINOFLAGELLATES
neostigmine
| edrophonium
