Joanne is wearing white cotton boxing gloves. There is no other way to describe them. The nurses are afraid that she will go after some of the many tubes, hoses and wires that are running in and out of her body. She has also put her boxing-gloved right hand to the incision in her head a time or two, getting a little blood on her bright white cotton glove--makes her look like she was in a fight.
And I suppose that she is in a fight. Keep swinging babe!