Pulmonary Embolism and Deep-Vein Thrombosis · NCLEX Exam

A patient with PE complains of anxiety and chest tightness. The nurse recognizes that anxiety may exacerbate hypoxia because:

  1. Anxiety actively improves oxygenation and gas exchange
  2. Anxiety raises sympathetic tone and oxygen demand, worsening gas exchange
  3. Anxiety exerts no measurable physiologic effect on the body
  4. Anxiety lowers the heart rate while leaving breathing unchanged
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Correct answer: Anxiety raises sympathetic tone and oxygen demand, worsening gas exchange

Anxiety raises sympathetic activity, increasing heart and respiratory rate and oxygen demand; in PE where oxygenation is already compromised, this can worsen hypoxia.

Difficulty: Medium Question 19 of 20

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