When I was kennel help, I took care of parvo dogs, game meds (pills, liquids, injections)... fed/groomed/exed dogs... cleaned bowls, washed blankets, cleaned cages, hosed out runs, swept/mopped... changed the garbage... and even took dogs to the crematory. I did *everything*, to the point that they hired an actual tech to do my job when I left to groom professionally.
At the state teaching hospital, I did less of the medicating, but my responsibilites were more, um... oomphy. I wasn't talking care of boarders, I was taking care of the dogs that had just undergone double TPLOs, post-op intensive care dogs... dogs with much more serious issues than at the clinic.