CBS Chicago reports the striking nurses said they're being forced to work long hours and cannot provide the proper care their patients need.
Hundreds of nurses – many in their uniforms, others in red T-shirts – began picketing outside the hospital at 7 a.m. as their one-day strike began, the station reported.
The striking nurses said they're sending a message about patient safety. "We did not walk out on our patients. We walked out for safe staffing, which is for our patients," nurse Johnny Webb said.
"Nurses are not just striking just to be striking. It is not something that anyone wants to do," registered nurse Denise Summers said.
Summers has worked as a nurse at the University of Chicago Medical Center for almost 10 years. She said change is drastically needed.