Following surgery for a large malignant brain tumor, the nurse should anticipate discussing which further treatment option with the family that may ensure that any remaining cancer cells will be killed?
A) Chemotherapy
B) Immunotherapy
C) Gamma knife radiation
D) Stem cell transplant
Ans: C
Feedback:
Most malignant brain tumors respond to external irradiation. Irradiation can increase longevity and sometimes can allay symptoms when tumors recur. The treatment dose depends on the tumor's histologic type, responsiveness to radiation, and anatomic site and on the level of tolerance of the surrounding tissue. A newer technique called gamma knife combines stereotactic localization of the tumor with radiosurgery, allowing delivery of high-dose radiation to deep tumors while sparing the surrounding brain.
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