welcome to healthcaremagic
"Recent inhalation of marijuana before general anethesia may cause acute uvular oedema and post-operative airway obstruction"
"During general anesthesia
, additive effects of marijuana and potent inhaled anesthetics can result in pronounced myocardial depression
[which usually accompanies severe sepsis
and septic shock]"
So may be doctor told not to smoke
Please be aware of this and follow the doctor