The psychiatric ED triage nurse evaluates four clients. Based on the severity and urgency of suicidality, which client should be prioritized for immediate intervention?

A 22-year-old college student with a history of a previous suicide attempt two months ago. The client expresses feelings of hopelessness and states, "I don't see things getting better," but denies any current plan or intent to harm themselves.

A 45-year-old recently laid off from work who reports intense feelings of hopelessness and has a specific plan to overdose on medications. They have gathered the pills and state they "just need the courage to go through with it."

A 35-year-old diagnosed with major depressive disorder who reports feeling like a burden to family members. They admit to having vague suicidal thoughts, with a history of prior ideation but no attempts. They express ambivalence and are open to discussing coping strategies.

A 30-year-old with bipolar disorder, currently in a manic episode, expressing grandiosity and impulsivity. While they deny suicidal thoughts now, they have a history of multiple suicide attempts during previous manic phases.