A patient describes feeling wonderful and full of plans. Which single question would most usefully help establish whether this is morbid euphoria rather than ordinary good spirits?
Asking directly about any resulting risky decisions or behaviour changes tests the specific feature — impaired judgement disproportionate to genuine circumstances — that the phenomenon's own text identifies as central to morbid euphoria, rather than simply confirming that the mood is elevated, which alone doesn't distinguish it from ordinary happiness.
Key discriminating feature: The defining feature of morbid euphoria is its impact on judgement and behaviour, disproportionate to circumstances, so asking specifically about resulting decisions or risk-taking is the most useful way to test this.
References
- Casey, P. & Kelly, B. (2019). Fish's Clinical Psychopathology, 4th ed. Ch. 6, 'Disorders of Emotion'.