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Difficulty: MediumBipolar and Related Disorders

A 26-year-old male graduate student presents to the student health clinic complaining of severe exhaustion and low mood for the past month. He states he has no energy to attend lectures, sleeps 12 hours a day, and has lost interest in playing the guitar, which is his favorite hobby. He describes feeling immensely guilty over his lack of productivity. Upon further questioning, he reveals that two years ago he experienced a distinct 3-week period where he required only 2 hours of sleep per night, felt 'full of brilliant ideas,' and maxed out his credit cards buying equipment to start a music production company. That episode resolved without medical intervention. He currently takes no medications and has no history of substance use. The physician is planning to initiate pharmacological therapy for his current presentation.

Which of the following are appropriate pharmacological interventions for this patient's current episode? (Select all that apply)

  1. Monotherapy with quetiapineAnswer
  2. Monotherapy with cariprazineAnswer
  3. C
    Monotherapy with sertraline
  4. D
    Monotherapy with venlafaxine
  5. E
    Monotherapy with bupropion

Answer

The correct pharmacological interventions are monotherapy with quetiapine and monotherapy with cariprazine.
The correct answers provide appropriate, evidence-based treatments for acute bipolar depression. The patient's history of an elevated mood, decreased need for sleep, and severe impulsivity lasting three weeks meets the criteria for a past manic episode, confirming a diagnosis of Bipolar I Disorder. First-line therapies for bipolar depression include specific second-generation antipsychotics such as quetiapine, cariprazine, and lurasidone. These agents effectively treat depressive symptoms while inherently protecting against a manic switch.

Step-by-Step Solution

1
Analyze the clinical history to establish the correct psychiatric diagnosis.
The patient has a current major depressive episode and a history of a severe manic episode, fulfilling the criteria for Bipolar I Disorder.
Recognizing a past manic episode is crucial, as treating bipolar depression requires a fundamentally different pharmacological approach than unipolar depression.
2
Identify the standard of care for treating an acute depressive episode in Bipolar I Disorder.
First-line treatments include specific mood stabilizers and select second-generation antipsychotics, such as quetiapine, cariprazine, or lurasidone.
These medications have demonstrated efficacy in alleviating bipolar depression without inducing mood elevation.
3
Evaluate the treatment choices and rule out contraindicated therapies.
Quetiapine and cariprazine monotherapy are appropriate. Sertraline, venlafaxine, and bupropion monotherapy are incorrect.
Antidepressant monotherapy is generally contraindicated in bipolar disorder because it can precipitate a manic switch or rapid cycling.

Key Concept

The treatment of acute bipolar depression requires specific second-generation antipsychotics (e.g., quetiapine, cariprazine) or mood stabilizers, while explicitly avoiding antidepressant monotherapy due to the high risk of inducing a manic switch.
Estimated Time:1m 15s
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Topics

Bipolar and Related Disorders

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