An endoscopy nurse is a registered nurse (RN) who has training to assist physicians performing endoscopies. An endoscopy is a diagnostic procedure in which a small camera, called an endoscope, is inserted into a patient under sedation. The duties of the endoscopy nurse include preparing sedation, monitoring the patient during the procedure, and providing after-care and instructions. The nurse’s responsibilities may involve emergency measures during or after the procedure. The field requires medical qualifications for administering medications and observing patients under sedation. An endoscopy nurse can find a job in a hospital, a private clinic, or a specialist’s office.