Can leukemia patients use cell phones in the sterile ward?

In principle, no, the sterile ward does not allow medical equipment other than equipment and tools and household items brought into the sterile ward, the hospital has strict rules and regulations indoor also has a special phone, but also depends on the patient's recovery needs to be approved by the doctor, which doctors and nurses can not take the risk of infection of the patient. Of course, the mismanagement of the various hospitals will relax management without regard to the safety of patients also have.