For RN ATI...
Anxiety Disorders, Obsessive-Compulsive Disorder, Personality Disorders, Schizophrenia, Substance Abuse Disorders (know treatment, nursing intervention, outcome, and risk factors)
Meds: antipsychotics, MAOIs, mood stablizer, SSRI. Know contraindications, S/E, Dietary interaction
Basic concept: thearapeutic communication and relationship
I didn't take a leadership assessment, but i think you should focus on priority type base questions, ethical and legal issues, fire safety, and time management.