2013 ORS § 654.423¹
Use of physical force by home health care employee in self-defense against assault

(1) A health care employer may not impose sanctions against an employee who used physical force in self-defense against an assault if the health care employer finds that the employee:

(a) Was acting in self-defense in response to the use or imminent use of physical force;

(b) Used an amount of physical force that was reasonably necessary to protect the employee or a third person from assault; and

(c) Used the least restrictive procedures necessary under the circumstances, in accordance with an approved behavior management plan, or other methods of response approved by the health care employer.

(2) As used in this section, self-defense means the use of physical force upon another person in self-defense or to defend a third person. [2007 c.397 §7]