Which of the following is a common sign of infection?

A common sign of infection is elevated body temperature, often referred to as a fever. When the body detects an infection, the immune system responds by raising the body's temperature as part of its defense mechanism. This increased temperature can help inhibit the growth of pathogens and enhance the function of immune cells.

Fevers are often accompanied by other symptoms such as chills, sweating, and fatigue. They serve as a crucial indicator for healthcare providers to assess whether an infection may be present, prompting further diagnostic steps or treatments. Recognizing fever as a symptom of infection is important for timely management and preventing more serious complications.

While low blood pressure, elevated blood sugar levels, and increased heart rate can also be associated with infections or other health issues, they are not specific indicators of infection like a fever is. Understanding the role of fever in infection helps in clinical assessments and can influence treatment decisions in patient care.