A nurse on the oncology unit is caring for a patient with an astrocytoma. The patient has just been told that the tumor is growing very fast. The patient asks the nurse how these tumors grow. What is the nurse's best response?
A) "Brain tumors infiltrate the surrounding tissue."
B) "Brain tumors grow by invading the surrounding grey matter."
C) "Brain tumors grow by invading the surrounding white matter."
D) "Brain tumors spread down the spinal cord."
A
Feedback:
Over time, these neoplastic cells grow uncontrollably, invading and damaging healthy tissue in the area and even undergoing metastasis (traveling from the place of origin to develop new tumors in other areas of the body where conditions are favorable for cell growth). The abnormal cells release enzymes that generate blood vessels. Brain tumors can invade either grey or white matter or they can spread down the spinal cord. These responses do not answer the patient's question.
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