Patient care workers at the University of California's medical centers plan to stage a two-day strike next week, but the number taking part will be decided Monday in Sacramento County Superior Court. A judge is expected to rule on a request for a temporary restraining order limiting the number of workers who may take part in the walkout. According to UC officials, the focus is on workers considered essential for patient care. The union representing nearly 13,000 patient healthcare workers has notified UC that it plans to strike over contract issues from 4 a.m. Tuesday to 4 a.m. Thursday. Several thousand others could participate in a "sympathy strike" Tuesday.