Q: All of the following can mimic brain death scenario and should be ruled out before declaring a patient brain dead except?
A) Upper limb pronation extension reflex
B) Locked-in syndrome
D) Drug intoxication
E) Guillain-Barré syndrome
Upper limb pronation extension reflex originates from the spinal cord or peripheral nerve and may occur in brain death. All other situations (choices B, C, D, and E) may mimic brain death where a patient is actually not dead.
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