A nurse in a provider's office is collecting data from a client who reports dyspnea and fatigue. The nurse determines that the client also has tachycardia and edema. Which of the following disorders should the nurse suspect?

A. Heart failure: Dyspnea, fatigue, tachycardia, and edema are classic signs of heart failure (reduced cardiac output and fluid retention). B. Asthma: Asthma presents with wheeze and episodic dyspnea, but edema and systemic tachycardia/chronically fatigue are less typical. C. COPD: Can cause dyspnea and fatigue, but generalized edema is more suggestive of heart failure (though cor pulmonale can cause edema). D. Pneumonia: Causes dyspnea and sometimes tachycardia and fatigue, but peripheral edema is not a typical feature.