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Questions and Answers
What is the most commonly used fixative mentioned in the text?
What is the most commonly used fixative mentioned in the text?
- Formaldehyde 10% neutral buffered formalin (correct)
- Glutaraldehyde
- Mercuric Chloride
- Zenker solution
What type of pigment does Mercuric Chloride produce?
What type of pigment does Mercuric Chloride produce?
- Mercury pigment (correct)
- Yellow pigment
- Dark brown pigment
- Black acid hematin / formalin pigment
How can the black acid hematin / formalin pigment be removed?
How can the black acid hematin / formalin pigment be removed?
- Treat with iodine followed by sodium thiosulfate
- Washing with 50-70% alcohol
- Use Orth's Solution
- Alcoholic picric acid (correct)
Which fixative is considered a post fixative in the text?
Which fixative is considered a post fixative in the text?
What is the main purpose of using Phosphotungstic acid-hematoxytin (PTAH) for muscle tissues?
What is the main purpose of using Phosphotungstic acid-hematoxytin (PTAH) for muscle tissues?
Why can Glutaraldehyde not be used on Schiff techniques like PAS?
Why can Glutaraldehyde not be used on Schiff techniques like PAS?
Which type of microscopy is considered a good screening method for the formalin pigment mentioned in the text?
Which type of microscopy is considered a good screening method for the formalin pigment mentioned in the text?
What is the main purpose of using Bouin's solution as a fixative according to the text?
What is the main purpose of using Bouin's solution as a fixative according to the text?
Which of the following fixatives is mentioned in the text as producing a $\text{mercury pigment}$ that is difficult to remove?
Which of the following fixatives is mentioned in the text as producing a $\text{mercury pigment}$ that is difficult to remove?
Why is Glutaraldehyde mentioned as not being suitable for use with Schiff techniques like PAS?
Why is Glutaraldehyde mentioned as not being suitable for use with Schiff techniques like PAS?
What is the main purpose of using Phosphotungstic acid-hematoxylin (PTAH) staining on muscle tissues according to the text?
What is the main purpose of using Phosphotungstic acid-hematoxylin (PTAH) staining on muscle tissues according to the text?
Which fixative is mentioned in the text as a 'post fixative' that is used after an initial fixation with another agent?
Which fixative is mentioned in the text as a 'post fixative' that is used after an initial fixation with another agent?
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