Which of the following is a sign of an infusion reaction?

An infusion reaction can present with a variety of signs and symptoms as the body reacts to the infusion of intravenous fluids or medications. Fever, increased heart rate, and difficulty breathing are all potential indicators of an infusion reaction.

Fever may develop as part of the body's immune response to foreign substances or allergens introduced during the infusion. An elevated heart rate may occur as part of the body's stress response to an infusion reaction, indicating that the body is working harder to compensate for changes occurring within the system. Difficulty breathing can indicate an allergic response, such as an anaphylactic reaction, to the infused substance, leading to respiratory distress.

Given that these symptoms can appear alone or in combination during an infusion reaction, recognizing the presence of any of them is crucial for timely intervention. Therefore, stating that all of these symptoms can signify an infusion reaction demonstrates a comprehensive understanding of the clinical presentations associated with such events. The correct choice effectively encapsulates the range of symptoms that could alert a healthcare provider to an infusion-related issue.