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Questions and Answers
What is the primary function of Sudan Black B in differentiating AML from ALL?
What is the primary function of Sudan Black B in differentiating AML from ALL?
- Staining glycogen and mucoproteins
- Hydrolyzing esters
- Staining lipids such as sterols and phospholipids (correct)
- Detecting Factor VIII-related antigen
Which of the following is a characteristic of esterase staining in myelocytic cells?
Which of the following is a characteristic of esterase staining in myelocytic cells?
- Stains glycogen and mucoproteins
- Is specific to granulocytes and monocytes
- Forms a brightly colored compound with diazonium salt (correct)
- Is directly proportional to cell growth and maturation
What is the substrate used in the Periodic Acid Schiff (PAS) stain?
What is the substrate used in the Periodic Acid Schiff (PAS) stain?
- Naphthol AS-D chloroacetic esters
- α-napththyl butyrate
- Glycogen and mucoproteins
- Carbohydrates and aldehydes (correct)
Which of the following cells is intensely red-pink with the PAS stain?
Which of the following cells is intensely red-pink with the PAS stain?
What is the product of the reaction between esterases and diazonium salt?
What is the product of the reaction between esterases and diazonium salt?
What is the specificity of the esterase staining technique?
What is the specificity of the esterase staining technique?
Which enzyme is found in the primary granules of PMNs, eosinophils, and to a certain extent monocytes?
Which enzyme is found in the primary granules of PMNs, eosinophils, and to a certain extent monocytes?
What is the preferred fixative for non-enzymatic specimens in cytochemistry?
What is the preferred fixative for non-enzymatic specimens in cytochemistry?
What type of cells are negative (-) to weakly positive for Myeloperoxidase?
What type of cells are negative (-) to weakly positive for Myeloperoxidase?
What is the main principle behind Myeloperoxidase (MPX) staining?
What is the main principle behind Myeloperoxidase (MPX) staining?
Which type of leukemias are characterized by 85% positivity to Myeloperoxidase?
Which type of leukemias are characterized by 85% positivity to Myeloperoxidase?
What staining method remains stable even after a month for non-enzymatic specimens?
What staining method remains stable even after a month for non-enzymatic specimens?
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