**Question:** Index of duration of malnutrition is –

A. Days
B. Months
C. Years
D. Weeks

**Core Concept:** The index of duration of malnutrition is a measure used in clinical practice to evaluate the severity and chronicity of malnutrition. It helps determine the appropriate intervention and treatment plan for the patient.

**Why the Correct Answer is Right:** The correct answer is **D**. Weeks, as the index of duration of malnutrition is used to classify malnutrition into mild, moderate, and severe based on the duration. Malnutrition can be acute or chronic, and the index helps distinguish between the two.

**Why Each Wrong Option is Incorrect:**

A. Days (Option A) is too short a duration to qualify as malnutrition. Malnutrition is typically defined as a state of nutritional deficiency that lasts for more than 1 day but less than a week.

B. Months (Option B) is longer than the required duration for malnutrition but still too short to be classified as chronic malnutrition.

C. Years (Option C) is considered chronic malnutrition and is usually defined as lasting longer than 12 months.

**Clinical Pearl / High-Yield Fact:**

Malnutrition is a complex medical condition characterized by a disturbance in body composition, body cell mass, or body stores. It can be acute or chronic, and its classification helps guide appropriate interventions and treatment strategies.

**Correct Answer:** D. Weeks