Awoman is brought into an emergency room after a severe automobile accident. she's unconscious and badly injured. her husband arrives at the emergency room at the same time as she arrives in the ambulance. the doctor explains the wife's condition to her husband and asks for permission to operate on her. the husband agrees to the operation. the husband 's approval for the operation is called consent a. mutual b. substituted c. contractual d. informed

i'm not sure, but can you answer my most recent question?

fluid balance is an aspect of the homeostasis of organisms in which the amount of water in the organism needs to be controlled, via osmoregulation and behavior, such that the concentrations of electrolytes (salts in solution) in the various body fluids are kept within healthy ranges. the core principle of fluid balance is that the amount of water lost from the body must equal the amount of water taken in.