A patient who is severely brain damaged has decerebrate posturing with extended extremities. In which area of the brain should the nurse suspect the patient has sustained damage?
a. Cerebrum
b. Brain stem
c. Cerebellum
d. Hypothalamus
ANS: B
Abnormal extension posturing, or decerebrate posturing, indicates damage in the area of the brain stem. A. Decorticate posturing indicates significant impairment of cerebral functioning. C. D. There are no specific postures associated with damage to the cerebellum or hypothalamus.
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