It is not standard practice to not call when a nurse has been cancelled, but failing to call, happens, sometimes frequently. In my state, according to Labor law, one is entitled to "reporting time pay", also called "show up" pay, of one half the scheduled shift, or at least four hours. Many employers refuse to pay that four hours of entitled pay and feign ignorance of the law when the employee calls them on it. One staffing coordinator said they called me a few minutes, not two or four hours, before a scheduled shift but my phone never showed that call. Another time this happened I was enroute. Never heard my cell phone
ring, nor would I have answered it while driving on the highway. I had to mention the Labor Board before they would pay me for that shift. Encourage the OP to do an internet search for "reporting time pay" or "show-up pay" for their state to find out if there is a policy in their state.