statute of limitiations in WA state

A medical malpractice action must be brought within three years of the act or omission alleged to have caused the injury or one year after the discovery of the alleged negligent act or omission, whichever period expires later. Wash. Rev. Code Ann. § 4.16.350 (West Supp. 1997).

In no event may a medical malpractice action be brought later than eight years after the date of the alleged act or omission. Id.

The limitations period is tolled upon proof of fraud, intentional concealment, or the presence of a foreign object in the claimant. Id.