One of San Diego's largest hospital systems is responding to calls from dozens of its workers to suspend surgeries at one of its facilities over reported cleanliness concerns. More than 70 employees at Kaiser Zion Medical Center in Grantville have signed a petition calling for the move, citing possible contaminants in the trays used to hold surgical instruments. In the wake of these reported concerns, Kaiser told CBS 8 that they are "confident that no compromised surgical instruments have reached our patients and that all care has been safe and medically appropriate." A spokesperson for Kaiser confirmed that they are experiencing an issue with the washers used to clean surgical instruments at the Zion Medical Center, adding that they are "working as quickly as possible to restore functionality (of) these washers." MORE: https://www.cbs8.com/article/news/local/kaiser-responds-to-employees-calls-to-suspend-surgeries/509-c5834144-aa41-4bcd-a41b-80425c72656b