light anesthesia
"I had Versed for a Colonoscopy ~14 years ago.  I was not told in advance I would be "put out" and my memory be erased.  After been hooked up to the IV, for pain management, the nurse said "you don't want to remember this anyway."  I went out as the procedure started and woke up in recovery.  I went home and shook for 4 hours.  For the next 10 years or so my short-term memory was impaired. I attended a service school thereafter and had a lot of trouble remembering items for tests.  I normally do very well . I have reoccurring nightmares of the procedure (PTSD?).  This is terrible drug, it is immoral to erase one's memory without their full understanding in advance. I bear a lot of animosity towards the clinic.  I will never allow its use again"