Differentials
Agoraphobia
SIGNS / SYMPTOMS
Avoidance of at least 2 situations based upon fears that escape might be difficult.
May experience panic sensations, but the panic sensations are expected as opposed to unexpected.
INVESTIGATIONS
Structured clinical interview.
Specific phobia
SIGNS / SYMPTOMS
Excessive or unrealistic fear of specific objects or situations. Identify precipitants for panic attacks; panic sensations are cued by anticipated or actual exposure to the phobic stimuli rather than unexpectedly. There may be absence of persistent concern or behavioral change because of fear of further panic attacks, unlike in panic disorder.
INVESTIGATIONS
Structured clinical interview.
Social anxiety disorder
SIGNS / SYMPTOMS
Focus of the fear involves concerns over being embarrassed and negatively evaluated by others. Identify precipitants for panic attacks; panic sensations are cued by anticipated and actual exposure to social and evaluative situations, rather than unexpectedly. There may be absence of persistent concern or behavioral change because of fear of further panic attacks, unlike in panic disorder.
INVESTIGATIONS
Structured clinical interview.
Illness anxiety disorder
SIGNS / SYMPTOMS
In illness anxiety disorder patients are overly preoccupied with somatic symptoms and focus on their body. There may be a lack of autonomic hyperactivity. Fears are likely to be temporally more distant (e.g., cancer) compared to in panic disorder where fears are generally immediate (e.g., heart attack).
INVESTIGATIONS
Structured clinical interview.
Posttraumatic stress disorder
SIGNS / SYMPTOMS
Onset follows a potentially life-threatening stressor. Additional differential symptoms include emotional numbing and reexperiencing the trauma.
Identify precipitants for panic attacks; panic sensations are cued by anticipated and actual exposure to trauma cues, rather than unexpectedly. There may be absence of persistent concern or behavioral change because of fear of further panic attacks, unlike in panic disorder.
INVESTIGATIONS
Structured clinical interview.
Separation anxiety disorder
SIGNS / SYMPTOMS
Symptoms cued by perceived and actual separation from family members.
INVESTIGATIONS
Structured clinical interview.
Substance-induced anxiety disorder
SIGNS / SYMPTOMS
Symptoms caused by the direct physiologic effects of substance use or as a result of its withdrawal.
INVESTIGATIONS
Structured clinical interview and toxicology screening.
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