On 4/19/23 at approximately 1715 while on the unit, resident was involved in a verbal altercation with a peer that progressed to a brief physical altercation. Staff was able to intervene promptly to separate the residents. After this event, resident began scratching her arm with her fingernails. Staff was able to intervene and verbally de-escalate the resident. No skin was broken from scratching, and the area was noted to be slightly reddened. No nursing care was needed. Because of this event, resident was placed on a self-harm precaution safety plan with constant line of sight. Clinical will decide the appropriate amount of time for these precautions and determine if individualization of safety plan is needed.