You are assessing a patient and considering whether emotionally unstable personality disorder is the appropriate framing. Before revealing the answer, decide how you would approach this.
Establish which classification system is being used, since one major system uses emotionally unstable personality disorder as an umbrella term containing two distinguishable subtypes, while another major system does not use this umbrella at all, instead treating these two patterns quite differently from one another. Assess whether the shared thread across the presentation is poor control over impulses and outbursts, pointing toward the impulsive type, or poor control over relationships, self-image, and mood, pointing toward the borderline type, since recognising which pattern predominates is what carries the real descriptive and clinical detail. Be aware that using the umbrella term alone, without specifying which subtype is present, conveys relatively little clinical information on its own.
References
- Casey, P. & Kelly, B. (2019). Fish's Clinical Psychopathology, 4th ed. Ch. 10, 'Personality Disorders'.