A 22-year-old patient presents with fatigue, chest discomfort, and palpitations. Vital signs show HR 112 bpm. BP 98/5, and low-grade fever. The nurse notes irregular heart sounds and severe pedal edema. Which condition should the nurse suspect? (Select All that Apply.)

Rationale: A. While pneumonia can cause fever, fatigue, and chest discomfort, it is less likely to cause severe pedal edema, irregular heart rhythms, or palpitations. The presence of edema and irregular heart sounds points toward a cardiac origin rather than a primary pulmonary infection. B. Fatigue, chest discomfort, irregular heart sounds, pedal edema, and low blood pressure are classic signs of heart failure, particularly in a young adult who may have acute or chronic cardiac dysfunction. Heart failure can also contribute to the development of arrhythmias. C. COPD primarily presents with chronic cough, dyspnea, and sputum production. While it can strain the heart over time, COPD alone would not account for the acute irregular heart rate, edema, and chest discomfort in this patient. D. The irregular heart rate (HR 112 bpm) and irregular heart sounds are indicative of atrial fibrillation, which is common in patients with underlying heart disease or heart failure. Atrial fibrillation can also worsen cardiac output, contributing to edema and fatigue. E. Pulmonary embolism typically presents with acute dyspnea, pleuritic chest pain, tachypnea, and sometimes hemoptysis. Edema and irregular heart rhythms are not primary features, making this less likely than heart failure and atrial fibrillation.