HT Histotechnician

Category - Fixation

All of the following choices below are the disadvantages of the formalin fixative, except:
  1. Dermatitis on prolonged contact.
  2. It may produce considerable shrinkage of the tissue.
  3. Prolonged fixation may produce bleaching of the specimen and loss of natural tissue colors.
  4. It evaporates quickly.
Explanation
Answer: D - It evaporates quickly.
All of the following choices below are the disadvantages of Formalin fixative except for statement that it evaporates quickly. Formalin does not evaporate quickly because it is diluted with solutions that are not volatile like saline and phosphate as buffer.
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