In AML M2, high-dose chemotherapy drugs like cytarabine can occasionally cause severe neurological side effects, including a coma-like state. Strong pain relievers (like fentanyl) or sedatives can also deeply depress consciousness. Often, the cause is a combination of these medications, infections, or metabolic changes from the illness. To manage a patient on a ventilator, doctors use intravenous sedatives (such as propofol or midazolam) and pain medications to ensure comfort and safety. If an underlying infection is present, targeted antibiotics or antifungals are administered. Please be assured that the intensive care team carefully monitors and adjusts these medications second-by-second to support your loved one's healing.