Respiratory symptoms can be caused by which of the following?

• A. Lung Conditions Only
• B. Emotions Only
• C. Lung or Heart Conditions, Emotions, or Injury
• D. None

Answer: (C)

Breathing-related symptoms come from more than just the lungs. Respiratory symptoms can arise when the lungs are involved, but the heart can play a role too—heart problems like heart failure can cause shortness of breath. Emotions and stress can change breathing patterns, sometimes making breaths feel faster or shallower. Physical injury to the chest or ribs can also cause breathing difficulties or pain that makes breathing seem impaired. Because all of these can lead to respiratory symptoms, the most complete explanation includes lung or heart conditions, emotions, or injury. Limiting it to just one area would miss other common and important causes.