Which condition is included in the chest pain differential diagnosis for acute dyspnea?

• A. Pulmonary embolism
• B. Migraine
• C. Gastroesophageal reflux without chest pain
• D. Appendicitis

Answer: (A)

Acute dyspnea with chest pain should always raise concern for a cardiopulmonary emergency, and pulmonary embolism is a classic cause because a clot lodging in the pulmonary arteries creates a sudden mismatch between ventilation and perfusion and often irritates the pleura, producing pleuritic chest pain. This combination—sudden onset shortness of breath plus chest pain—fits PE especially when there are risk factors such as recent surgery or immobilization, cancer, pregnancy, or estrogen use. The presentation can be variable: some patients have marked hypoxemia with tachypnea and tachycardia, while the lungs may sound relatively normal on exam, which can make PE easy to miss unless it’s specifically considered.

Understanding this helps you to prioritize testing (for example, CT pulmonary angiography or a D-dimer-based strategy with clinical risk assessment) when the clinical picture suggests PE.

Migraine typically involves headaches and neuro symptoms rather than acute chest pain with dyspnea. Gastroesophageal reflux can cause chest discomfort but does not usually present with acute dyspnea, and appendicitis is an abdominal condition with pain localized to the lower right quadrant rather than the chest.