Normabeth,
My wife has survived Breast Cancer (15 years). QuiltE and Marjben are on track. If you are making the female nurses a tote bag, do so for the male also (just be a bit masculine). I personally would prefer a Kit Bag to a tote bag.
OBW (oh by the way) I personally would like a less showy item than a tote bag, perhaps a laptop bag, kit bag, or maybe a satchel, (masculine of course).
But that is just me.
What you are doing for your sister is a VERY GOOD thing.
A little appreciation goes a long way.
You might want to make her a chemo quilt too. (Chemo is an IV drip that is generally not warmed up).
Good luck and thank you for what your plans are.
Mike