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May 1, 2023 · Before specific staining can occur, tissue samples must undergo preparation through the following stages: Fixation, processing, embedding, sectioning, and sometimes antigen retrieval. In modern histology laboratories, most of these steps are automated.
- Tatyana S. Gurina, Lary Simms
- 2023/05/01
Principles of Bloodstain Pattern Analysis. To understand how analysts interpret bloodstains, one must first understand the basic properties of blood. Blood contains both liquid (plasma and serum) and solids (red blood cells, white blood cells, platelets and proteins).
May 26, 2021 · Several types of stains are used to make bacterial cells more visible. In addition, specific staining techniques can be used to determine the cells’ biochemical or structural properties, such as cell wall type and presence or absence of endospores.
Describe the unique features of commonly used stains. Explain the procedures and name clinical applications for Gram, endospore, acid-fast, negative capsule, and flagella staining. In their natural state, most of the cells and microorganisms that we observe under the microscope lack color and contrast.
Apr 21, 2024 · Explain the procedures and name clinical applications for Gram, endospore, acid-fast, negative capsule, and flagella staining. In their natural state, most of the cells and microorganisms that we observe under the microscope lack color and contrast.
Define simple stain. Tell the purpose of simple staining and what bacterial feature(s) can and cannot be ascertained when using a simple stain. Prepare a bacterial smear and properly heat fix the smear. Tell the importance of fixation in preparing a bacterial sample for staining.
Stains may be used to define biological tissues (highlighting, for example, muscle fibers or connective tissue), cell populations (classifying different blood cells), or organelles within individual cells.
