An endoscopy takes between 15 and 45 minutes, depending on what is found, (i.e., multiple polyps that can be removed during the exam). You will be asked to arrive at AZ West Endoscopy Center at your appointment time to fill out the patient registration information and have our Nurse and Anesthesiology Staff evaluate you prior to starting your procedure. A nurse will go over your medical history and place a small intravenous catheter in your vein in order for the Physician or Anesthesiology Staff to administer medication that will make you sleepy during the procedure. You will be monitored in the recovery area for at least 30 minutes after the procedure. Total time in our facility for an endoscopy exam is usually 90 minutes to 2 hours.