Originally Posted by SFCardiacRN
I worked at a hospital where a couple of patients claimed to be aware during surgery. One was even able to repeat a joke told during the surgery. It turned out that an OR tech was switching pre-filled fentanyl syringes with sterile saline and only the muscle relaxant was being used! A couple of huge lawsuits ended the practice of pharmacy filled syringes in anesthesia "tackle boxes".
Not to knock this story or you personally, but some details seem a little off like Nitecap stated. Only a moron in this day and age of anesthetic development would choose a narcotic and paralytic technique on a regular basis for general cases. Maybe on a sick heart once and a while or in an absolute trauma, but unlikely enough to have 'several instances'. An experienced practitioner should immediately see that no fentanyl being administered by seeing ANS upheaval on intubation, cut time, or shortly thereafter.
Not cool in any book but this should have been detected before a patient woke up stating recall. I guess it may be possible given a patient on a healthy dose of beta blockers, but a bad situation nonetheless.