What is the most likely diagnosis for a patient experiencing heart palpitations and intense fear peaking in 10 minutes?

The most likely diagnosis for a patient experiencing heart palpitations and intense fear peaking in 10 minutes is a panic attack. Panic attacks are characterized by sudden episodes of intense fear that trigger severe physical reactions when there is no real danger or apparent cause. The rapid onset of symptoms, including heart palpitations, shortness of breath, or feelings of impending doom, align with the experience described in the question.

A panic attack typically reaches its peak within 10 minutes, and during this time, individuals may experience overwhelming anxiety that can include various physical symptoms such as chest pain, sweating, trembling, and a fear of losing control or dying. This momentary but intense episode forms the basis for the diagnosis, differentiating it from other conditions that may have overlapping symptoms but do not match the characteristic time frame and intensity.

Other options have distinguishing features; for example, angina relates to heart-related issues typically linked to physical exertion or stress instead of psychological fear. Bipolar disorder involves mood fluctuations rather than acute fear episodes, and generalized anxiety disorder presents with chronic anxiety that is more pervasive and less sudden than what is experienced during a panic attack.