While examining a stained blood film under ´10, a significantly disproportionate number of monocytes are seen at the sides and in the featheredge of the blood film. What should be done?
a. Exclude these cells from the ´100 differential evaluation.
b. Nothing; this finding is not significant.
c. Make and stain a new slide.
d. Add 2% more to the number of monocytes counted in the white cell differential.
ANS: C
When too many monocytes are found at the sides and/or in the featheredge of the slide, distribution of white cells on the slide is poor. A new slide must be made and stained.
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