Anesthesiologists are highly trained medical doctors who specialize in the administration of medications and monitoring of patients during surgical procedures (operations).
From the website: www.lifelinetomodernmedicine.com 
"Anesthesiologists are physicians of medicine who, after graduating from college with a strong background in physics, chemistry, biology and mathematics obtain a medical doctorate degree after completing four years of medical school. Following medical school, they learn the medical specialty of anesthesiology during an additional four years of post medical school training – one year of internship and three years in an anesthesiology residency program."
Here are some links that may assist a student in understanding what it takes to get into medical school and anesthesiology residency:
