What vital sign might indicate sepsis?

• A. Decreased respiratory rate
• B. Increased heart rate
• C. Steady blood pressure
• D. Normal body temperature

Answer: (B)

An increased heart rate, or tachycardia, is a vital sign that can indicate sepsis because it reflects the body's response to infection and inflammation. When sepsis occurs, the body’s immune system reacts aggressively to the presence of pathogens, which often includes the release of various inflammatory mediators. This process increases metabolic demands and can lead to an elevated heart rate as the heart works harder to supply oxygenated blood to tissues that may be suffering from impaired perfusion or oxygen delivery.

In sepsis, the heart rate can significantly rise as a compensatory mechanism in response to septic shock, where systemic vascular resistance decreases and the body attempts to maintain adequate blood flow. Alongside increased heart rate, other common signs of sepsis can include elevated respiratory rate, altered mental status, fever, or hypothermia; however, the increased heart rate is one of the more consistent and easily measurable vital signs associated with the condition.

The other options do not align with sepsis indicators; a decreased respiratory rate and steady blood pressure are not typical signs of septic response, and a normal body temperature is also atypical, as fever is often present in septic patients. Understanding these vital signs is crucial for early recognition and management of sepsis, which can significantly impact