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3. What are Sudan stains used primarily for? A. Blood B. Lipids C. Nervous tissue D. Elastic fibers
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The correct answer is A. Blood.Sudan stains are primarily used for detecting and visualizing lipids, such as fats and oils, in tissues. They are commonly used in histology and pathology to identify lipid-containing cells and structures. Sudan stains bind to lipids, causing them to appear red or orange under a microscope. This staining technique is particularly useful in identifying adipose tissue, lipid-laden macrophages, and other lipid-containing cells.