Flagellates Flashcards
Pathogenic
Gardia lamblia
Trichomonas vaginalis
Nonpathogenic
-Chilomastix mesnili
-Trichomonas hominis
-Trichomonas tenax
are seen in loose, liquid or soft stool samples
Trophozoites
commonly seen if formed stool samples
Cyst
Watery, liquid stool samples
Processed within 30 minutes
Formed stool sample
Processed within 1 hour
How many flagella are present in the gardia lamblia?
2-6 (8 Flagella)
size range of Gardia Lamblia in trophozoite
8-20 Um
Shape of Gardia Lamblia in Trophozoite?
Pear or teardrop
Motility of G lamblia
Falling leaf
Appearance of G lamblia
Bilateral Symmetrical
Size range of Cystic stage in G lamblia
11-14 um
Shape in cyst of G lamblia
Ovoid ellipsoidal or round
How many nuclei present in cystic stage in G lamblia?
2- 4 At one end young cyst 3 nuclei, mature cyst 4 nuclei
Habitat of G lamblia
Small intestine (duodenum Jejunum)
CHARACTERISTICS USED TO DISTINGUISH FLAGELLATES
SPP.
-Motility
-Shape
-Number of nuclei
What kind of treatment that they used when they have a gardia lamlia disease
○ Metronidazole (Flagyl)
○ 750 mg/tid/5d
○ >90% cure rate
(T OR F ) G.lamblia infection is common in children
T
(T or F) G.lamblia trophozoites are
attached to caecal mucosa
F (G.lamblia trophozoite are
attached to duodenal mucosa)
(T or F) Stool of Giardia infected
patients contains mucus
tinged with blood
False (Stool is light-coloured and
greasy)
(T or F) Giardia infected patients
complain of diarrhoea and Flatulence
T
(T or F) Both trophozoite and cysts of Giardia are infective to man
F
○ The largest flagellate found in man
○ Has both trophozoites and cyst stage
Chilomastix Mesnili
Habitat of Chilomastix Mesnili
Large Intestine (Colon Caecum)
