From the perspective of sick people and medical workers, the hospital only needs elevators if it has stairs. Otherwise, the patient waiting for dao rescue is lying on the cart, how to go up and down the stairs?
In addition, there are a lot of medicines and medical supplies... Between the pharmacy and the treatment room, you also need to use a cart to move, and it is not convenient to go up and down the stairs.China Hospital Elevators manufacture
To build a hospital, surely the fewer floors, the better. From my point of view, I built a box and enclosed a courtyard. As long as there are two floors, it is necessary to install an elevator. Only one is not enough. Three or four seats are needed, located at the four corners of the box.
I grew up and became a doctor after a long illness. I have seen much in hospitals, and now I have joined the blood donation team of the Red Cross. I am certainly not professional enough in your question, but from the perspective of patients and medical workers, my answer should be worthy of reference.