I have friends that are nurses so I have collected some:
Imaginations! (E4430) has a cute nurse stamp & she is holding up a shot!
Inkers-A-Way has one that is a nurse holding a clipboard and a shot
Uptown Rubber Stamps has a "Boyds Bear" that is a nurse
These are just the ones I have and I know I have had them for awhile so not sure if they are still available
I sent you a PM!