Which of these is used to check vitality of cells in oral mucositis/ precancerous lesions
1) Congo red exclusion test
2) Toluidine blue test
3) Tryptan blue exclusion test
4) Ketone exclusion test
📝 Explanation:
The trypan blue exclusion test is a common method used to determine the number of viable cells in a cell suspension. Viable cells have intact cell membranes that exclude the dye, while dead or damaged cells take up the blue dye.
MCQ