Clinical case analysis: Management of complex cardiovascular…

I need a detailed, high-quality analysis of a clinical case involving cardiovascular and respiratory management.

Please provide:

  1. Differential diagnosis based on symptoms and clinical history.
  2. Step-by-step diagnostic workup (laboratory tests, imaging, etc.).
  3. Evidence-based therapeutic plan (pharmacological and non-pharmacological management).

Note: Please include practical rules, mechanisms of action, and clear explanations for medical exam preparation.