Kato-Katz Flashcards
It is a quantitative method that allows the detection of all helminth eggs occurring in feces.
Kato-Katz
In kato-katz, cellophane is soaked in
________ or _______ and is placed over the fecal sample.
malachite green and methylene blue solution, respectively
Kato Katz is also known as?
Cellophane Fecal Thick Smear
To significantly expedite clearing and examination the
slide can be placed in a ____ incubator or kept in direct sunlight for several minutes.
40°C
These parasites remain visible and recognizable for many months in these preparations.
Ascaris and Trichuris eggs
These clear rapidly and will no longer be visible after 30-60 minutes.
Hookworm eggs
This parasite may be recognizable for up to several months but
advantageous if examined within 24 hours (endemic areas).
Schistosomiasis eggs
If parasite/s is/are not seen report as:
No parasite seen
If parasite/s is/are seen, report as:
Positive for species and *EPG (eggs per gram)
Multiply by the appropriate number to give the number of eggs per gram of feces: If using a 50mg template
by 20
Multiply by the appropriate number to give the number of eggs per gram of feces: If using a 20mg template
by 50
Multiply by the appropriate number to give the number of eggs per gram of feces: If using a 41.7mg template
by 24
Sputum smear is for the assessment of?
- Paragonimus westermani eggs
- Strongyloides stercoralis
- Ascaris lumbricoides
- Hookworm larvae
Why is the cellophane soaked in malachite green or methylene blue solution?
Because it preserves the eggs and makes the smear transparent allowing easy identification of helminth eggs
In sputum smear preparation, you centrifuge the specimen for _____ at ______ rpm
2 minutes & 2000, respectively
