When examining a blood specimen on oil immersion, the red cells appear flat, large, and distorted. An average of 100 red cells is noted per oil field. Select the best course of action
a. Go to a thicker area of the specimen.
b. Go to a thinner area of the specimen.
c. Make a new specimen.
d. Collect a new sample.
ANS: A
This area of the blood film is too far out in the featheredge for valid morphologic examination. Move further back into the slide to an area where approximately 200 RBCs/field are seen and biconcave morphology is observed. Red cells should not be overlapping and only a few touching.
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