A patient presents with shortness of breath, rapid heart rate, and cyanosis. On auscultation, pulmonary crackles were heard. Which of the following invasive methods may be used to confirm a diagnosis of pulmonary edema?
  1. Cardiac catheterization
  2. Pulmonary artery catheterization
  3. Surgical maze procedure
  4. Percutaneous pulmonary intervention
Explanation
Answer: B - Pulmonary artery catheterization is an invasive approach that can be used to diagnose pulmonary edema. It measures the pressure in the pulmonary vasculature.
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