What is the most common physical manifestation in a client experiencing a panic attack?

In the context of a panic attack, tachycardia, or an increased heart rate, is the most common physical manifestation. During a panic attack, individuals often experience intense fear or discomfort that can trigger the body's "fight or flight" response. This response leads to various physiological changes, one of which includes an increase in heart rate to pump more blood and oxygen to the muscles and vital organs, preparing the body to react to perceived danger.

Tachycardia can be particularly alarming to individuals experiencing a panic attack, often heightening their sense of anxiety and leading to further panic as they may misinterpret their physical symptoms as a sign of something more severe, such as a heart attack. This physiological response is a core component of the panic attack experience, making it the most common physical symptom associated with the disorder.