Common signs and symptoms of a panic attack include all of the following, EXCEPT:

A prolonged loss of consciousness is not a common sign or symptom of a panic attack. Panic attacks typically involve intense fear or discomfort that peaks rapidly, along with physical symptoms such as palpitations, shortness of breath, and feelings of choking or smothering. While individuals may feel faint or light-headed, they do not actually lose consciousness.

The other symptoms listed, such as nausea, a sensation of being smothered, trembling, and paresthesias (tingling sensations), are indeed characteristic of panic attacks. These symptoms result from the body's natural "fight or flight" response to perceived threats, contributing to the overwhelming feelings experienced during a panic attack. Thus, the distinguishing factor is that while panic attacks can lead to feelings of dizziness or faintness, they do not cause a true loss of consciousness.