A patient has come to the health center with an enlarged thyroid; the nurse practitioner believes the thyroid cells may suffer from hyperplasia and is aware that:
A) Hyperplasia is an abnormal decrease in cell and organ size and is a precursor to cancer.
B) Hyperplasia is an abnormal increase in new cells and is reversible with the stimulus for cell growth removed.
C) Hyperplasia is the change in appearance due to a chronic irritation and will reverse with the stimulus removed.
D) Hyperplasia is a cancerous growth and will be removal surgically.
Ans: B
Feedback: Hyperplasia is an increase in the number of new cells in an organ or tissue. This is due to increased mitotic stimulation from additional cell division; this in turn enlarges the tissue. Hyperplasia is reversible when the stimulus for cell growth is removed. Options A and C are incorrect; hyperplasia is the increase in the number of new cells, not a change in size or appearance. Option D is incorrect; hyperplasia is the increase in the number of new cells, which may or may not be cancerous growth.
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