Gluteraldehyde is not the recommended fixative for a periodic acid-Schiff stain because:

This image is of a granuloma. What caused this phenomenon to occur? 2.jpg

Match the following chemical with its property. Answers can be used more than once, choose the BEST answer.

Fixatives that contain picric acid include: Check all that apply

The xylene solution in the processor appears to be cloudy. What is/are the correct action(s) to be taken?Check all that apply

Which of the following infiltrating mediums would be useful for large CNS specimens?

Examination of a section of H&E stained skin shows cells that appear to have shrunk; there is a lot of artificial spaces surrounding the cells. The best possible solutions include:

Which of the following processing schedules should be used to process routine surgical specimens in a closed system overnight?Schedule ASchedule BSchedule CAlcoholic formalin – 1 hours10% NBF – 2 hoursAlcoholic formalin – 4 hoursAlcoholic formalin – 1 hourAlcoholic formalin – 1.5 hoursAlcoholic formalin – 2 hour80% – 0.5 hour95% alcohol – 1 hour80% – 2 hour80% alcohol – 20 minutes95% alcohol – 1 hour80% alcohol – 1 hour95% alcohol – 20 minutes100% alcohol – 1.5 hour95% alcohol – 2 hour100% alcohol – 20 minutes100% alcohol – 1.5 hour100% alcohol – 2 hour100% alcohol – 20 minutesXylene – 1 hour100% alcohol – 1 hourXylene – 0.5 hourXylene – 1 hourXylene – 1.5 hourXylene – 20 minutesParaffin – 0.5 hourXylene – 120 minutesParaffin – 0.5 hourParaffin – 1 hourParaffin – 2.5 hourParaffin – 20 minutesParaffin – 1 hourParaffin – 2.5 hourParaffin – 20 minutesParaffin – 0.5 hourParaffin – 0.5 hour

Xylene is miscible with [BLANK-1] and [BLANK-2].

Briefly, describe how universal solvents work.