- If a person is obese, it can be harder for medical professionals to determine the correct dosage of anesthesia, as well as ensure the person receives enough oxygen while they are under.
- If a person suffers from heart disease, clogged arteries, had a stroke, high blood pressure, and other age-related medical condition could be at higher risk of complications while under anesthesia.
- A person suffering from sleep apnea or other medical conditions that affect breathing ability is at a high risk of suffering a dangerous loss of oxygen while under anesthesia. This could cause the victim to suffer permanent brain damage or death.