What technique is typically used to prepare touch preps from bone?

The technique used to prepare touch preps from bone involves rolling the bone specimen between two slides. This method allows for the effective transfer of cells from the bone surface onto the slides for microscopic examination. By gently rolling the slides, a thin layer of cells can be obtained, facilitating optimal viewing under a microscope.

This technique is especially useful for obtaining cellular detail and ensuring that the cells are not overly damaged, allowing for accurate evaluation in laboratory settings. It is important to note that other methods, such as placing the specimen directly onto the slide or using a pipette to spread the sample, may not achieve the same level of preservation and cell distribution needed for effective microscopic analysis. Fixation with alcohol is not a technique used in the initial preparation of touch preps, as the fixation process occurs after the cellular material is adequately prepared and ready for staining.