Giardia Flashcards
1
Q
cause
A
Giardia duodenalis
2
Q
Sample and method
A
Lugol/iodine- faeces-good for both the cysts and trophozoites! the cysts appear grey/blue/green
Giemsa for intestinal/ gut smear
3
Q
Diagnosis:
A
detection of moving trophozoites in gut with flagella
4
Q
Position of the parasite
A
EC
They are lumen dwelling flagellates
5
Q
Development
A
Spread by cysts, development is always direct!!
Transmission by contaminated water/food
6
Q
Morphology of the trophozoite
A
2x nuclei 2x axostyles 4 pairs of flagellae 10-20 Pear-shaped Symmetrical
7
Q
Morphology of the Cyst
A
This is the infectious form!
9-15
Oval
4x nuclei
8
Q
Clinical signs
A
Usually symptomless In young: malabsorption syndrome Pancreatic insufficiency Emaciation Yellow/slimy Dx
