NDLE Community and Public Health Nutrition Practice Test

Mid-Upper Arm Circumference (MUAC) is a quick, direct way to identify children at higher risk of death due to acute malnutrition and to screen for severe or moderate acute malnutrition. Using a simple MUAC tape, you measure the circumference of the upper arm; smaller measurements correlate with depleted energy and protein reserves and higher mortality risk. In practice, MUAC is especially useful in community settings and for children aged roughly 6 to 59 months because it doesn’t require scales or accurate height measurements and can be done rapidly by frontline workers. Thresholds such as MUAC below 115 mm indicating severe acute malnutrition and 115–125 mm indicating moderate acute malnutrition are used to guide immediate action. In contrast, weight-for-height, weight-for-age, and height-for-age reflect wasting, underweight, and stunting respectively, but they are less efficient for quick mortality risk screening and require more equipment or longer assessment. So MUAC serves as the most effective tool here because it directly flags mortality risk linked to acute malnutrition in a simple, portable format.