試題詳解

96 A patient receives a lumbar epidural block with 2% lidocaine for a vaginal hysterectomy. Three hours after surgery the patient reports a dense motor block. An MRI demonstrates a lumbar epidural hematoma. For the best neurologic outcome, it is recommended that a surgical evacuation of the hematoma occurs within
(A) 6-8 h
(B) 8-10 h
(C) 10-12 h
(D) 12-14 h
(E) 14-16 h