A Cab Driver,stuck in Traffic,becomes Lightheaded,tremulous,diaphoretic,tachycardic and Dyspneic

A cab driver,stuck in traffic,becomes lightheaded,tremulous,diaphoretic,tachycardic and dyspneic.A workup in an emergency department reveals no pathology.Which medical diagnosis should a nurse suspect,and what nursing diagnosis should be the nurse's first priority?

A) Generalized anxiety disorder and a nursing diagnosis of fear
B) Altered sensory perception and a nursing diagnosis of panic disorder
C) Pain disorder and a nursing diagnosis of altered role performance
D) Panic disorder and a nursing diagnosis of anxiety