Which of the following is a major symptom of cardiopulmonary disease?

Palpitations or tachycardia are significant indicators of cardiopulmonary disease because they reflect the heart's response to stress or diminished oxygen supply, which can occur in various cardiac and pulmonary conditions. When the heart or lungs are not functioning optimally, the body may attempt to compensate for the reduced efficiency by increasing the heart rate (tachycardia) or causing the sensation of palpitations as the heart beats more forcefully to maintain adequate blood flow and oxygen delivery to tissues.

This symptom is particularly important as it is often associated with conditions such as heart failure, arrhythmias, and chronic obstructive pulmonary disease (COPD). In contrast, morning stiffness, dry skin, and cold limbs are not typically associated with the primary symptoms of cardiopulmonary disease but might indicate other concerns such as musculoskeletal or peripheral vascular issues. Understanding the hallmark symptoms of cardiopulmonary disease is crucial for early detection and intervention, which can significantly improve patient outcomes.