Mom always gets mad for peeing in bed - 2x/day at least. How do I help her take it in stride?

Since she is mentally able to understand, I would make it seem so simple and no big deal. I used to tell my cousin that NO ONE has a perfect bladder and that ladies over 50 have the right to have bladder mishaps. There's no disgrace in it. In fact, I would tell her that I was glad to see the pee, because it meant her kidneys were working fine and that made me feel good.

Yes.... it's not enough that I remind her she's 93... I think being specific about the physical reasons her organs have changed will help. She's very smart, so more info is a good idea. Thank you.

Could you explain that as people age their organs gradually lose the strength they used to have? Assure that it happens to others as well - and it's not her fault.

Perhaps you could also follow the events with something that really makes her happy - music, sitting and talking, having a cup of coffee or tea (if she can drink them, depending on her diet), watching a favorite program, looking at photo albums....something the two of you have always enjoyed doing together.