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Difficulty: MediumAnxiety, OCD, and Trauma-Related Disorders

Seeking relief from pervasive, uncontrollable worry, a 38-year-old female executive presents to a new psychiatrist. For the last eight months, she has been continuously anxious about her career stability, her children's academic performance, and her personal health. This worry has led to chronic muscle tension, fatigue, and disrupted sleep. Her past medical records reveal a psychiatric hospitalization in her twenties for a discrete episode characterized by euphoric mood, hypersexuality, and a complete lack of sleep for eight consecutive days. Three weeks ago, a different provider prescribed her phenelzine for her anxiety. She took the medication for two weeks but abruptly stopped it three days prior to this appointment due to intolerable orthostatic hypotension. The current physician establishes a diagnosis of generalized anxiety disorder. Which of the following are appropriate components of this patient's management plan? (Select 2 answers)

  1. Referral for cognitive-behavioral therapy emphasizing cognitive restructuring and relaxation techniquesAnswer
  2. Avoidance of all serotonergic medications for at least 11 additional daysAnswer
  3. C
    Immediate initiation of sertraline to rapidly alleviate the severe worry
  4. D
    Initiation of citalopram monotherapy once a full 14-day medication washout is complete
  5. E
    Reassurance that these symptoms characterize a brief psychotic disorder and will resolve within a month

Answer

The appropriate management steps involve referring the patient for cognitive-behavioral therapy and avoiding serotonergic medications for at least 11 additional days.
The correct management plan must address the patient's generalized anxiety disorder while safely navigating her complex psychiatric and pharmacological history. First, cognitive-behavioral therapy (CBT) is a first-line, evidence-based treatment for GAD that carries no risk of pharmacological interactions or manic induction. Second, the patient recently discontinued phenelzine, an irreversible monoamine oxidase inhibitor (MAOI). Because irreversible MAOIs permanently deactivate the MAO enzyme, it takes the body approximately two weeks to synthesize new enzyme. Therefore, a strict 14-day washout period is required before initiating any serotonergic medications to avoid life-threatening serotonin syndrome. Since she stopped the medication 3 days ago, she must avoid serotonergic agents for at least 11 additional days.

Step-by-Step Solution

1
Diagnose the primary current condition based on the presenting symptoms.
The patient has generalized anxiety disorder (GAD), characterized by >6 months of pervasive worry across multiple domains, accompanied by somatic symptoms like muscle tension and fatigue.
Establishing the correct current diagnosis determines the baseline treatment algorithm.
2
Analyze the patient's psychiatric history for contraindications to standard pharmacotherapy.
The patient has a history of a manic episode (hospitalization, euphoric mood, hypersexuality, no sleep for 8 days), establishing a background diagnosis of Bipolar I Disorder.
Patients with a history of bipolar disorder are at high risk for antidepressant-induced mania (manic switch) if treated with SSRI/SNRI monotherapy.
3
Evaluate the patient's recent medication history for potential drug-drug interactions.
The patient took phenelzine, an irreversible monoamine oxidase inhibitor (MAOI), and discontinued it 3 days ago.
Irreversible MAOIs permanently deactivate the MAO enzyme. It takes approximately 14 days for the body to synthesize new enzyme, meaning a strict 14-day washout period is required before starting any serotonergic drugs.
4
Synthesize the findings to select appropriate management.
Pharmacotherapy with serotonergic agents is currently absolutely contraindicated (due to the MAOI taken 3 days ago) and relatively contraindicated as monotherapy (due to Bipolar I). The best approaches are psychotherapy (CBT) and strict avoidance of serotonergic drugs for the remaining 11 days of the washout.
Combining these facts ensures patient safety (preventing serotonin syndrome and manic switch) while effectively treating the GAD.

Key Concept

Management of anxiety in the context of comorbid Bipolar I Disorder and recent MAOI use requires prioritizing psychotherapy and adhering to a strict 14-day washout period before considering any serotonergic agents.
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Topics

Anxiety, OCD, and Trauma-Related Disorders

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