A Manual WBC Count Is Performed Using a System That

question 21

Multiple Choice

A manual WBC count is performed using a system that makes a 1:20 dilution of blood.When the cells in the four large corner mm² of the hemocytometer are counted,the following numbers of cells are obtained: 8,12,9,and 11.What would be the next step?

• A)Count the cells in all 9 mm² of the hemocytometer.
• B)Redo the dilution of blood using a new 1:20 dilution.
• C)Redo the dilution of blood using a 1:100 dilution.
• D)Calculate the count using the values from the 4 mm² and report the result.

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Definitions:

Action Potentials

Electrical impulses that allow neurons to transmit information to other neurons, muscles, or glands.

Plasma Membrane

The biological membrane separating the interior of a cell from its external environment, composed of a phospholipid bilayer.

Muscular Dystrophy

A group of genetic diseases characterized by progressive weakness and degeneration of the skeletal muscles that control movement.

Muscle Fibers

The elongated cells found in muscle tissue that contract to produce movement, part of the larger muscle structure.