PARASITOLOGY BOARD EXAM (PART 2) Flashcards
Best stain for the trophozoite
QUENSEL’S IODINE
Treatment of choice for invasive amoebiasis
METRONIDAZOLE
Drug of choice for asymptomatic cyst passers
DILOXANIDE FUROATE
a type of dysentery which has:
- acute onset
- vomiting common
- odorless stool
- w/out charcot-Leyden crystals
BACILLARY DYSENTERY
a type of dysentery which has:
- Gradual dysentery
- no vomitting
- fishy odor stool
- w/ Charcot-Leyden crystals
AMOEBIC DYSENTERY
E. histolystica has a __ that can attach to the __ on the surface of the epithelial cells in the intestines
LECTIN; N-ACETYLGALACTOSAMINE SUGARS
no. of nucleus E. histolystica (cyst)
4
no. of nucleus E. coli (cyst)
8
Chromatoidal Bars of E. histolystica (cyst)
SAUSAGE SHAPED/ROD CIGAR SHAPED
Chromatoidal Bars of E. coli (cyst)
WITCH BROOM STICK SPLINTERED/ NEEDLE LIKE ENDS
Movement of E. histolystica (trophozoite)
PROGRESSIVE AND DIRECTIONAL
Movement of E. coli (trophozoite)
SLUGGISH MOVEMENT
Shape of pseudopodia (E. histolystica)
FINGERLIKE
Shape of pseudopodia (E. coli)
BLUNT
Nucleus (karyosome) of E. histolytica
CENTRAL
Nucleus (karyosome) of E. coli
ECCENTRIC/PERIPHERAL
Cytoplasm E. histolytica
CLEAR
Cytoplasm E. coli
DIRTY
- Small-race E. histolytica
- Only clear cut distinction is size
- No RBCs in the cytoplasm
ENTAMOEBA HARTMANNI
Size of E. hartmanii (troph)
12 um
Size of E. hartmanii (cyst)
10 um
- Found in Intestines of pigs and monkeys
- cyst with SINGLE nucleus
ENTAMOEBA POLECKI
- kissing amoeba
- associated with gum inf’xn
- aquired thru sharing utensils and kissing
ENTAMOEBA GINGIVALIS
Troph of E. gingivalis: karyosome:
small and centrally-located
- cross eyed cyst
- large, irregular blot-like karyosome
- no peripheral chromatin
- SMALLEST AMOEBA
ENDOLIMAX NANA
describe Iodamoeba butchlii (troph)
ACHROMATIC GRANULES
describe Iodamoeba butchlii (cyst)
GLYCOGEN GRANULES
- causative agent of PRIMARY AMOEBIC MENINGITIS
- aquired when swimming during hot weather in BRACKISH/FRESHWATER
NAEGLERIA FOWLERI
it is blunt pseudopodia, trophozoite form, found in CSF and tissue
AMOEBOID
pear-shaped w/ 2 anterior flagella, swimming form, found CSF
FLAGELLATE
Treatment of NAEGLERIA FOWLERI
- Amphotericin B
- Clotrimazole
- Azithromycin
-causative agent of GRANULOMATUS AMOEBIC ENCEPHALITIS
ACANTHAMOEBA SPP.
contaminated contact lens solution presents with ___
KERATITIS
describe Acanthamoeba (troph)
SPINY FILAMENTS FOR LOCOMOTION
describe Acanthamoeba (cyst)
DOUBLE WALLED WRINKLED CYST
- largest protozoan affecting human
- only significant ciliate
BALANTIDIUM COLI
Reservoir host of Balantidium coli
PIGS
BALANTIDIUM COLI (troph) -kidney-shaped, vegetative
MACRONUCLEUS
BALANTIDIUM COLI (troph) -dot-like, reproductive
MICRONUCLEUS
clinical manifestation of B. coli
- Wine glass ulceration (round base and round neck)
- asymptomatic carriers
culture media of Acanthamoeba spp.
PYGC Medium (Potato-Yeast Glucose Culture)
treatment of Acanthamoeba spp.
SULFAMETHOXAZOLE-TRIMETHOPHRIM
mode of transmission of B. coli
INGESTION OF CYSTS (SWINE FECES)
characteristics motility of B. coli
THROWN BALL/ROLLING BALL
- associated with gay bowel syndrome
- only protozoan intestinal flagellate (lives in the SI of humans
GIARGIA DUODENALIS/LAMBLIA
only protozoa w/ a SUCKING DISK for attachment
GIARGIA DUODENALIS/LAMBLIA
motility of G. lamblia
falling leaf, kite-like, jerky
appearance of G. lamblia
old man w/ eyeglasses or smiling face
_ pairs of flagella and _____
4; Axostyle
shaped of G. lamblia
Pear-shaped/ teardrop shaped
characteristics of G. lamblia (cysts)
Flagella retracted to axonemes
pH attachment of G. lamblia
3 to 8
passage of greasy, frothy stool that floats on toilet water
Steatorrhea
The malabsorption of G. lamblia
Leningrad’s curse
motility of Chilomastix mesnili
spiral boring, forward movement
best stain for C. mesnili
Iron hematoxylin
closely related to Trichomonas spp.
Dientamoeba fragilis
D. fragilis was obtained via transmission of ___ and ___
E. vermicularis and A. lumbricoides
clinical manifestation of D. fragilis
- Resembles Irretable Bowel Syndrome
- Colicky abdominal pain
- The only pathogenic Trichomonas
- Reproduce by longitudinal binary fission
- It is called PING-PONG dse
Trichomonas vaginalis
females common signs and symptoms of T. vaginalis
- vaginal discharge (irritation and itchiness)
- endotrimetritis
punctuate hemorrhages of cervix
Strawberry cervix
males common signs and symptoms of T. vaginalis
- mostly asymptomatic
- protastits
most common complication of males when having T. vaginalis
Protastitis
the quickiest and most inexpensive way of diagnosis for T. vaginalis
Wet preparation
the Gold standard and the culture media of T. vaginalis
Diamond’s modified medium
treatment and a drug of choice when pregnant
Metronidazole
habitat of T. vaginalis
Genetalia
size of T. vaginalis
largest
nucleus of T. vaginalis
ovoid
Inclusion bodies of T. vaginalis
siderophil granules
SOC of T. vaginalis (females)
urine or vaginal swab/discharge
SOC of T. vaginalis (males)
urethral discharge, prostatic secretions
habitat of T. tenax
oral cavity