 [ Symptoms ] being intibated for surgery in 6 hours would a cup of coffee hurt me right now [ Disease ] yes it can be a problem most people having surgery are told to be npo latin abbreviation for nothing by mouth so that would include coffee water and food you are wise to follow your doctor is instructions since aspiration of stomach contents during intubation can lead to an aspiration pneumonia coffee contains caffeine caffeine may be chemically incompatible with the type of anesthesia you may be getting