A nurse is leading a critical incident stress debriefing with a group of staff members following a mass trauma Incident. Which of the following interventions should the nurse take first?

A. Reaction Formation:
Reaction formation is a defense mechanism where an individual expresses feelings or behaviors that are the opposite of their true feelings or impulses. For example, someone who harbors unconscious aggressive feelings might display exaggerated friendliness and kindness. In the given scenario, the behavior of the newly licensed nurse is not contradictory to their true feelings; they are imitating the charge nurse willingly.

B. Suppression:
Suppression is a conscious effort to push down or hide certain thoughts or feelings. Unlike repression (which is unconscious), suppression involves a deliberate choice not to think about or dwell on certain emotions or thoughts. In the scenario, the behavior of the newly licensed nurse is not an example of suppression because they are not consciously trying to hide their actions.

C. Identification:
Identification is a defense mechanism where an individual unconsciously models their behavior, feelings, or attitudes after those of someone else, especially someone they perceive as powerful or significant. In this scenario, the newly licensed nurse is imitating the behaviors of the charge nurse, which is an example of identification.

D. Compensation:
Compensation is a defense mechanism where an individual consciously or unconsciously covers up weaknesses, frustrations, or feelings of inadequacy by emphasizing strengths or seeking to excel in other areas. It involves making up for a perceived lack by putting extra effort into another aspect of life. The scenario does not describe the newly licensed nurse compensating for any perceived weakness; they are simply imitating the charge nurse's behavior.

A. Denial:
Denial is a defense mechanism in which a person refuses to accept reality or acknowledge the existence of something that is evident to others. For example, a person diagnosed with a serious illness might deny that they are ill or refuse to believe the diagnosis. In this scenario, the client is not denying a reality; he is expressing anger and directing it toward the nurse.

B. Compensation:
Compensation is a defense mechanism where an individual overachieves in one area to compensate for real or imagined deficiencies in another area. For instance, someone who feels intellectually inferior might excel in sports to compensate for their perceived inadequacy. This is not applicable to the client's situation in the scenario provided.

C. Rationalization:
Rationalization involves providing logical or reasonable explanations to justify behaviors or feelings that might otherwise be unacceptable. For instance, a person might rationalize a failure by blaming external factors rather than accepting personal responsibility. In the scenario, the client is not offering rationalizations but is expressing direct anger.

D. Displacement:
Displacement occurs when emotions, especially anger or frustration, are redirected from the original source to a less threatening target. For example, a person who is angry with their boss might come home and take out their frustration on their family members. In the given situation, the client is displacing his anger from his partner onto the nurse, asking her to leave, making displacement the most appropriate choice.