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Anxiety Disorders: Guidelines for Effective Primary Care, Part 1, Diagnosis

(PSYCHIATRIC TIMES) - Anxiety disorders are as prevalent and disabling as depression; they affect about 19.1 million adults in the United States at some point during their lifetimes.1-3 Because of the high suicide risk associated with depression, patients who have anxiety may attract less attention from their primary care providers. Thus, anxiety disorders often go undiagnosed and untreated.

At least 60% of patients with symptoms of anxiety disorders seek treatment in a primary care setting. These symptoms need to be distinguished from normal anxiety and fear, which are healthy emotional reactions to daily stressors related to interpersonal, social, educational, and vocational demands. Patients who present with anxiety symptoms that occur in the absence of an identified cause or stressor and that have lasted for an extended period of time and are accompanied by a deterioration of overall functioning probably have an anxiety disorder that warrants treatment.3,4

In this 2-part series, I review the diagnosis and treatment of anxiety disorders in the primary care setting. Here I discuss the clinical presentation, the relevant diagnostic studies, and the differential diagnosis. In a coming issue, I will summarize the available treatment options.


Risk factors. Among the risk factors for anxiety disorders are the following5:

•Past personal or family history of anxiety disorders.
•Increase in stressful psychosocial life events.
•Lack of social support network.
•Lack of or maladaptive coping strategies.
•Unresolved grief.
•Advanced or terminal illness.
•Acute or chronic pain.

Physical manifestations of anxiety. The physical symptoms of anxiety disorders may include shakiness; trembling; muscle aches; sweating; cold or clammy hands; dizziness; vertigo; fatigue; racing or pounding heart; hyperventilation; sensation of lump in throat; choking sensation; dry mouth; numbness and tingling of hands, feet, or other body part; upset stomach; nausea; vomiting; diarrhea; decreased sexual desire; and sleep disturbances.5

Psychological and social manifestations of anxiety. These may include jitteriness, tension, unrealistic or excessive worry, exaggerated startle reactions, and ritualistic behaviors. Some patients with anxiety disorders may fear being away from home, and they may stop going to work or attending public gatherings.6 Some may also demonstrate an irrational fear of strangers; others may be afraid of falling asleep because of recurrent disturbing dreams or nightmares. In addition, persons with anxiety disorders are often apprehensive and worry that something bad may happen to themselves or to their loved ones. They often feel impatient, irritable, and easily distracted.

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