Which of the following symptoms is commonly seen in early signs of peripheral vascular disease?

Intermittent claudication is the correct choice as it is one of the hallmark symptoms early in the development of peripheral vascular disease (PVD). This condition typically arises from impaired blood flow to the muscles and can lead to pain and discomfort, particularly during physical activities such as walking or climbing stairs. The pain usually subsides with rest, which distinguishes it from more severe chronic pain commonly seen in advanced stages of PVD.

In the early stages of PVD, intermittent claudication occurs because the muscles are not receiving adequate oxygen-rich blood during exertion, leading to cramping or pain. Recognizing this symptom is crucial for early diagnosis and intervention, potentially preventing the progression of the disease.

The other symptoms, while they may be related to peripheral vascular disease, do not typically present as early indicators. Severe pain at rest often points to more advanced stages where critical limb ischemia occurs, making it less indicative of early disease. Pain that improves with elevation of the leg generally suggests issues related to venous insufficiency rather than arterial problems. Persistent swelling in the leg can be associated with venous issues, heart failure, or other conditions, rather than specifically pointing to early signs of peripheral vascular disease.