Siemens Hematek, Operating Manual

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Page 4—4, Section 4: Specimens
3. The ‘feather’ end of the blood film should be at least 1.57 cm (5/8 inch) from the
opposite end of the slide to avoid extending beyond the platen surface and contact
with the staining reagents.
Do not allow the smear to touch the edges of the slide as large cells tend to accumulate
there. This may mechanically effect the distribution of the cell types.
Since frosted-end glass slides limit the spreading area, extra care is needed when
preparing a blood film.
Figure 4-1. Making a Blood Smear
4. Allow the smear to dry thoroughly before staining. See Section 3: Operating
Instructions for staining instructions.
After staining the slide, take the following precautions.
• Examine stained slides as soon as possible.
• Protect stained slides from direct sunlight and store them in a cool, dry place.