MLS UAMS QUESTIONS AND
COMPLETE SOLUTIONS GRADED
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Your Exam Plug
, Pros about automated counting - Answer: Speed
Accuracy
Eliminates subjectivity
Precision
More cells are counted
Small blood volume
Pros about Manuel counting - Answer: Low Cost
Good for low work volume
Fewer artifacts and spurious results
Impedance - Answer: Detects and measures changes in electrical resistance between two electrodes as
cells pass through a sensing aperture
How is the cell population evaluated on an automated cell counter? - Answer: Cell population is
evaluated based on size
Light Scatter - Answer: Blood is hydro dynamically focused by sheathing fluid which moves cells forward
the center of the column
As laser is interrupted, cells are counted and sized
In WBC Histograms, 35-90fL is what? - Answer: Lymphs
In WBC Histograms, 90-160fL is what? - Answer: Mononuclear Cells:
Monocytes, Blasts, Immature Granulocytes, reactive lymphs
In WBC Histograms,160-450fL is what? - Answer: Granulocytes
In a RBC Histogram, what amount is counted as RBCs? (in fl) - Answer: >36 fL