Do painless gastroscopy some people wake up quickly, some people wake up slowly, which is related to the metabolism time of the drug in the body, in addition to the individual physique.
1. Intravenous anesthesia: the awakening time depends on the dose of the drug, the fat solubility of the drug, and the length of time the drug is metabolized in the body. If the dosage is large, the anesthesia time is long and the awakening is slow; if the drug is metabolized slowly in the body, the awakening is slow. On the contrary, it is relatively fast.
2. Individual constitution: If the person who is extremely sensitive to anesthetics wakes up slowly; if the person is weak, thin, elderly patients, etc. applying normal dosage of drugs, the waking up time will be delayed compared with the normal constitution people. Conversely, awakening is faster.
In addition to the above factors, patients with underlying diseases (e.g., liver and kidney injuries, etc.) have different lengths of time to awaken from anesthesia.