A 21-year-old student has several episodes of palpitations, sweating, nausea and overwhelming fear of sudden onset. On one occasion, she has woken from sleep in this state and fears she is going insane. There is no previous history of any psychiatric disorder. What is the single most likely diagnosis?
a. Adjustment disorder
b. Agoraphobia
c. Anorexia nervosa
d. Bipolar disorder
e. Panic attack
Ans. The key is E. Panic attack. [Panic attack can be frightening and happen suddenly, often for no clear reason with following features, palpitations, sweating, trembling, hyperventilation, nausea, and few more