In the photo below you can see the walls behind the examination room are covered with narrow shelving units for easy access to medications and drugs. (safarivet.com)
Cut away the dry wall between two studs and install narrow shelves that are just the depth of the stud, usually about four inches. (rismedia.com)
I voted chalkboard, but I was wondering if she could frame it in so she could put a few narrow shelves across it and use it for some small plants or faux plants. (theletteredcottage.net)