The patient may eat a light meal prior to having a procedure done with local anesthesia (injection to the operated region only).
Nitrous Oxide Sedation
This is also known as "laughing gas." This method of sedation does not completely put you to sleep, although some patients report they may get very sleepy under the gas. The patient is able to recall the surgery process and is able to feel pressure while being operated on. Nitrous oxide sedation is always performed in combination with local anesthesia. You may eat a light meal prior to a procedure.
This is a form of sedation where the patient takes an oral dose of prescription medication (typically an anxiolytic such as Valium for adult patients, and a cocktail mixture for small children) 30 minutes before the procedure. The patient is informed not to eat any solids for at least 6 hours, and not to drink any clear liquids for 2 hours prior to surgery. The patient must also be accompanied by an adult on the day of the procedure. This technique can also be combined with nitrous oxide sedation.
This sedation technique is what patients refer to as "going to sleep" for the surgery. The patient's vital signs (blood pressure, pulse, oxygen level) and electrocardiogram (ECG) will be monitored throughout the procedure as well as during the recovery period. Prior to surgery, the nurse or doctor will place an intravenous line into the patient's forearm and through that line the sedation medications will be given. The surgeon typically will have two assistants in the room to help with patient monitoring and the procedure. Once the surgery is finished, the patient will wake up almost immediately but will still feel drowsy up to 2-3 hours. For this reason the patient needs to be accompanied by an adult on that procedure day. Driving and/or operating heavy machinery within 24 hours of IV sedation is contraindicated.