Examine humans
An anesthesiologist is the physician who puts patients under anesthesia for surgery; they are Doctors of Medicine (M.D.) or Doctors of Osteopathic Medicine (D.O.), who specialize in this field of medicine. There are also R.N.A.'s (Registered Nurse Anesthetists) who can also anesthetize patients, but they have to work under the supervision of an attending anesthesiologist.
they can if they get into the body through a cut or something of that sort.
doctors
some of them are doctors
it can go either ways because there are more humans in the world but animals need doctors , but i would say doctors
Some would say aliens and doctors both examine people. Some who believe in outer space aliens believe they examine humans to try and understand humans.
No, they typically have a PhD. They study insects, not humans.
Ketamine
Ketamine
Ketamine is used for short term surgical procedures in both animals and humans, and is also considered a hallucinogen when abused.
Vets treat animals and doctors treat humans. In other words, a vet is like a doctor, only they treat animals. Vets are animal doctors