The father of someone I know was diagnosed with Alzheimer’s disease. I wished her father a “Refuah Shleimah,” but she retorted “that’s unlikely.” She continued, “Better to say: ‘a brocha for arichas yamim and clarity of mind as long as possible.” Was I wrong in wishing a “refuah shleimah?” Was her expression more appropriate? Thanks
Wishing a sick person a refuah shleima is the standard way to bless a person who isn’t well, additioanally we are taught that no matter what happeneds Hashem can send a yeshua. Although what your friend was saying is also true, davening for your friend’s father in refaeinu is definitely the correct thing to do.