Which one of the following is a good index of the serverity of an acute disease
**Core Concept**
The severity of an acute disease is often assessed by evaluating the patient's physiological reserve and the extent of organ dysfunction. A good index should be a reliable and easily measurable indicator of the disease's severity.
**Why the Correct Answer is Right**
The Sequential Organ Failure Assessment (SOFA) score is a widely used index that evaluates the severity of organ dysfunction in multiple systems, including the respiratory, cardiovascular, hepatic, and renal systems. It assigns scores based on the level of dysfunction, with higher scores indicating greater severity. The SOFA score is calculated at admission and repeated daily to assess the progression of organ failure.
**Why Each Wrong Option is Incorrect**
**Option A:** The Glasgow Coma Scale (GCS) is primarily used to assess the level of consciousness and is not a comprehensive index of disease severity.
**Option B:** The APACHE II score is a severity-of-disease classification system, but it is more complex and time-consuming to calculate, making it less practical for daily use.
**Option C:** The Modified Early Warning Score (MEWS) is a simplified scoring system, but it is not as comprehensive as the SOFA score in evaluating organ dysfunction.
**Clinical Pearl / High-Yield Fact**
The SOFA score is a useful tool for guiding treatment decisions and predicting patient outcomes in critically ill patients. It is essential to remember that the SOFA score should be used in conjunction with clinical judgment and other diagnostic tools to provide a comprehensive assessment of disease severity.
**Correct Answer: C. The Sequential Organ Failure Assessment (SOFA) score is a widely used index that evaluates the severity of organ dysfunction in multiple systems.**