What are the special facilities in the emergency department?

There are many monitors, cardiopulmonary resuscitators, defibrillators, electrocardiographs, oxygen bags, blood gas analyzers, oxygen cylinders, ventilators, simple ventilators (small ones that can be carried by hand), and so on. According to the size of the emergency department of each hospital, the purchase of equipment will be more or less. If there is a simple operating room, there should be operating lights and operating tables.