Method 1623
Giardia & Cryptosporidium
Knowledge Review
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Is it Giardia? Check the characteristics observed in the photos which support why you think the organism is or is not Giardia. Once you have decided, check the Yes or No box below. (Photographs depict the same organism at maximum contrast and resolution.)
1. Nuclei
2. Median Bodies
3. Axonemes
4. Atypical internal structure
5. Amorphous internal morphology
6. Multiple cells
7. Cytoplasm pulled away from wall
8. Cell wall exhibits correct structure on DIC
9. Atypical shape
10. Typical shape
11. Brightly highlighted cell wall
12. Fluorescence intensity similar between the rim and interior
13. Atypical fluorescent pattern
14. DAPI stained nuclei
15. Intense blue internal staining with DAPI
16. DAPI negative
17. Atypical DAPI staining
Organism for Knowledge Review

Yes, it is Giardia.
No, it is not Giardia.

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