State hospital doctors are to stage a four-hour work stoppage from noon on Wednesday to protest plans to tighten control of public hospital finance.
The protest is being timed to coincide with a vote in Parliament on a government bill foreseeing the creation of a company that will henceforth manage hospital finances.
The union representing local authority workers, known by its acronym POE-OTA, has also called a four-hour work stoppage for Thursday, starting at 11.30 a.m.
The walkout is in protest at plans by the government to re-examine renewable short-term contracts that have been made permanent.
Unionists complain that the move will lead to layoffs.