General anesthesia- - - states of reversible unconsciousness where protective
reflexes are particle or completely lost, muscle relaxation, sedation, and amnesia obtained
Moderate sedation anesthesia- - - relaxed, non paralyzed state of analgesia
Regional anesthesia- - - loss of body sensation to region
Factor in anesthesia selection- - - age, physical status, type of surgery, patient
wishes, site of surgery/body position
ASA physical status classification- - - the specific risk the patient has to developing a
complication after to the procedure.
ASA 1- - - normal healthy patient
ASA 2- - - patient with mild, systemic disease...
smoker, pregnancy, obesity, mild drinker
ASA 3- - - severe systemic disease...poorly controlled DM, HTN, COPD, obesity,
history MI, stents
-some disagreement between anesthesia providers
, ASA 4- - - patient with incapacitating systemic disease. ESRD, severe cardiac valve
dysfunction, stents, sepsis
ASA 5- - - not expected stop survive without the operation
ASA 6- - - organ donor, patient passed as brain dead
"E" ASA status- - - emergency patient with unknown history.
this can be added to any of the statuses
Stage 1 of anesthesia- - - -analgesia stage-
conscious and rational, follows simple commands, perception of pain is diminished but
reflexes are intact
Stage 2 of anesthesia- - - -delirium- unconscious, body responds reflexively, pupils
dilated, breath holding, respirations irregular, muscle tone intact.
most at risk for laryngospasm and aspiration. also MI
Stage 3 of anesthesia- - - -surgical anesthesia-
increasing degrees of muscular relaxation, unable to protect airway
Stage 4 of anesthesia- - - -medullary depression-
depression of cardiovascular and respiratory centers