The walkout — which is slated to end by 7 a.m. Sunday — involves about 4,000 employees who work at Kaiser’s Sunnyside Medical Center in Clackamas, Westside Medical Center in Hillsboro and dozens of clinics and surgical centers stretching along the Interstate 5 corridor from Longview, Washington, to Eugene.

Kaiser has counter-offered a much smaller one-time market adjustment for the Oregon and Washington nurses. Kaiser’s market adjustment offer, combined with the across-the-board wage increases being bargained at the national level, would amount to a 27% total increase in wages over the four years, Karman said.