the focused on the letter a basically means being awake the b. and c. can be read as lies and as these. as a kind of dozing them off. stages d. and e. show us that's like she has now a patient has a good depth of and this these. there are no numbers on how often anesthesia is monitored with e.g. experts estimate the technique is part of routine procedure and less than half of all hospitals in germany you did she for uses e.g. often but not exclusively is kind and so she didn't and various parameters can indicate that a patient is awakening or experiencing pain. in our line of work we also keep an eye on whether the patient is sweating. whether there's an increase in heart rate hike or an increase in blood pressure stick. and pupil with this can also be a sign. as well as tears. up its tween.