A nurse or physician's assistant can administer an IV to a patient without a doctor's supervision.  Administering an IV is included in the job duties of a nurse or physician's assistant.If the nurse or physician's assistant was negligent in administering the IV and you were injured, the employer (MD) of the physician's assistant or nurse would be liable for your injuries because an employer is liable for the negligence of an employee that occurs during the course and scope of employment.