45. Which of the following statements concerning the difference between phenol and
alcohol when used in neurolytic blocks is/are FALSE?
(A) Phenol takes 15 minutes for neurolysis whereas alcohol’s neurolytic effect is
immediate.
(B) Phenol usually does not produce pain on injection.
(C) Intrathecal alcohol is hypobaric, whereas phenol is hyperbaric.
(D) Phenol is approximately twice as efficacious as alcohol.
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