A 63-year-old man with a 40-pack per year smoking history undergoes a low anterior resection for rectal cancer and on postoperative day 5 develops a fever, new infiltrate on chest x-ray, and leukocytosis. He is transferred to the ICU for treatment of his pneumonia because of clinical deterioration. Which of the following is a sign of early sepsis?

## **Core Concept**
The question tests the understanding of early signs of sepsis, particularly in a postoperative patient with a high risk of complications. Sepsis is a life-threatening organ dysfunction caused by a dysregulated host response to infection. Early recognition is crucial for timely intervention.

## **Why the Correct Answer is Right**
The correct answer, , likely refers to an option that describes a sign of early sepsis, such as tachycardia, tachypnea, altered mental status, or other systemic inflammatory response syndrome (SIRS) criteria. In the context of sepsis, early signs often include **tachycardia** (heart rate > 90 beats per minute), **tachypnea** (respiratory rate > 20 breaths per minute or PaCO2 < 32 mmHg), and **hypotension** (systolic blood pressure 40 mmHg from baseline). However, the exact option isn't provided, but typically, altered mental status or increased respiratory rate are early indicators.

## **Why Each Wrong Option is Incorrect**
- **Option A:** Without specifics, it's hard to say, but if it describes a sign not associated with early sepsis or a criterion not met for SIRS or sepsis, it's incorrect.
- **Option B:** Similarly, if this option does not align with recognized early signs of sepsis or SIRS criteria, it's incorrect.
- **Option C:** If not directly related to early indicators of sepsis or organ dysfunction, it's incorrect.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is the **SOFA score** (Sepsis-related Organ Failure Assessment) and **qSOFA** (quick SOFA) criteria for identifying patients at higher risk of mortality due to sepsis. qSOFA criteria include **respiratory rate ≥ 22 breaths/min**, **altered mentation**, and **systolic blood pressure ≤ 100 mmHg**. These are crucial for early identification and aggressive management of sepsis.

## **Correct Answer: .**

✓ Correct Answer: D. Peripheral vasodilation