Giardia lambilia Flashcards
1
Q
Giardia lambilia (other names)
A
Giardia intestinal - Giardia duodenalis
2
Q
General info about Giardia lamblia
A
- First protozoan parasite described
- The most common protozoal intestinal parasite
3
Q
distribution
A
In both temperate and tropical regions
4
Q
High risks for whom??
A
Travelers and immunocompromised patients
5
Q
Habitat for Giardia ?
A
Duodenum, jejunum and upper ileum
- may present in gall bladder and billary passages
6
Q
stages of Giardia lambila ?
A
- Trophozoite( pathogenic)
- cyst( infective)
7
Q
morphology of trophozoite
A
- Pear shaped
- Bilateral symmetrical
- Bilobed adhesive disk with 2nuclei and Central large karyosome
- four pairs of flagella
- two axonemes
8
Q
morphology of cyst
A
- ovoid has 4 nuclei
- axonemes
- double wall
9
Q
Definitive host
A
Human
10
Q
mode of infection
A
Feco-oral
11
Q
excystation site
A
Stomach and duodenum
12
Q
encysration site?
A
Colon
13
Q
Pathogenesis of Giardia
A
- atrophy of intestinal villi
- lactase deficiency
- malabsorption syndrome
14
Q
Risk factors for Giardia
A
- Acholorhdia
- CHO rich diet
- Bacterial colonization of intestine
- malnutrition
- hypogammaglobulinemia
- IgA deficiency
- chronic pancreatitis
- children with A blood group
15
Q
Diagnosis of Giardia lamblia
A
Stool examination
String test
Duodenal aspiration
Serodiagnosis
