What is a common symptom of an infarct?

An infarct refers to the localized death of tissue due to a lack of blood supply, typically caused by obstruction of blood vessels. The common symptom associated with an infarct is indeed an area of dead tissue, as this directly results from the inadequate blood flow leading to oxygen deprivation in that specific area.

Infarcts can occur in various organs—most commonly in the heart (myocardial infarction) or brain (cerebral infarction)—and the presence of dead tissue is a hallmark sign indicative of the severity and nature of the damage caused. This leads to inflammation and can result in other symptoms, but the definitive characteristic is the necrosis of tissue.

Other options, while they may be associated with various medical conditions or situations, do not specifically highlight the direct consequence of an infarct like an area of dead tissue does. Increased heart rate can occur due to various factors including pain or stress; flushed skin might result from other circulatory issues; and chronic fatigue can arise from numerous health problems but isn't a defining symptom of an infarct. Thus, identifying dead tissue is fundamental in diagnosing and understanding infarcts.