Podcast
Questions and Answers
What is the purpose of using tissue processing baskets?
What is the purpose of using tissue processing baskets?
- To make the tissue more rigid
- To store tissue blocks permanently
- To remove tissue water and replace it with a solid medium
- To transfer tissues from reagent to reagent (correct)
What is the most satisfactory embedding medium used in routine histology?
What is the most satisfactory embedding medium used in routine histology?
- Tissue processing baskets
- Lipid tissue fluids
- Paraffin wax (correct)
- Aqueous fixatives
What is the principle of tissue processing?
What is the principle of tissue processing?
- Thoroughly permeating the tissue with fluid medium
- Storing tissue blocks in tissue tek system
- Using aqueous fixatives to remove lipid tissue fluids
- Replacing tissue water with paraffin wax (correct)
Why is it necessary to remove tissue water before embedding the tissue in paraffin wax?
Why is it necessary to remove tissue water before embedding the tissue in paraffin wax?
Which process occurs before tissue impregnation with paraffin wax?
Which process occurs before tissue impregnation with paraffin wax?
What is the purpose of using a tissue tek system?
What is the purpose of using a tissue tek system?
What factor influences the rate of tissue impregnation by paraffin wax?
What factor influences the rate of tissue impregnation by paraffin wax?
Which method can be used to achieve efficient agitation for tissue impregnation?
Which method can be used to achieve efficient agitation for tissue impregnation?
What does heat do to the rate of tissue penetration by paraffin wax?
What does heat do to the rate of tissue penetration by paraffin wax?
What influences the viscosity and rate of penetration of tissue impregnation?
What influences the viscosity and rate of penetration of tissue impregnation?
What is the first step in paraffin wax embedding?
What is the first step in paraffin wax embedding?
Why is it inadvisable to use a higher concentration of alcohol initially for dehydration?
Why is it inadvisable to use a higher concentration of alcohol initially for dehydration?
What is the purpose of using anhydrous copper sulphate in higher grade dehydrating alcohols?
What is the purpose of using anhydrous copper sulphate in higher grade dehydrating alcohols?
What does the change of colour of copper sulphate from white to blue indicate?
What does the change of colour of copper sulphate from white to blue indicate?
In which type of fixative is tissue transferred directly to 95% alcohol without prior dehydration?
In which type of fixative is tissue transferred directly to 95% alcohol without prior dehydration?
