According to WHO, severe PEM is described if MUAC is?

NORCET 2 - 2021 (shift-1)

Applied Nutrition & Dietetics

Easy

Appeared in: NORCET 2 - 2021 (shift-1)

Explanation

The World Health Organization (WHO) defines Severe Acute Malnutrition (SAM), a form of severe PEM, in children aged 6–59 months as a Mid-Upper Arm Circumference (MUAC) of less than 11.5 cm.
This measurement is a key anthropometric indicator for identifying children at a high risk of mortality who require urgent therapeutic feeding.
The color-coded MUAC tapes used in community screenings have a red section that corresponds to this <11.5 cm measurement, serving as a visual alert for immediate action.

Option A: A MUAC of 12.5 cm is the lower threshold for normal nutritional status, not severe malnutrition.
Option B: This range (12.5 cm to 13.5 cm) is generally considered normal or, in some contexts, 'at risk' but not severely malnourished.
Option C: A MUAC greater than 13.5 cm indicates a satisfactory and healthy nutritional status.

Visual 1: Infographic: A color-coded MUAC tape showing the red (<11.5 cm), yellow (11.5-12.4 cm), and green (≥12.5 cm) zones with their corresponding nutritional status (SAM, MAM, Normal).
Visual 2: Diagram: A step-by-step visual guide on how to correctly measure MUAC on a child's arm, highlighting the landmarking of the midpoint between the acromion and olecranon.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain WHO criteria for classifying severe Protein-Energy Malnutrition (PEM) using Mid-Upper Arm Circumference (MUAC) as background academic context rather than a clinical decision trigger.
MUAC is a simple, fast, and reliable tool for community health workers and nurses to screen for acute malnutrition, especially in resource-limited settings, as it does not require complex calculations or knowledge of the child's exact age.
A child identified with a MUAC <11.5 cm (in the red zone) requires immediate referral to a therapeutic feeding program to prevent complications and death.
What if? If a child has visible edema on both feet (pitting edema), they are automatically classified as having severe malnutrition (kwashiorkor), regardless of their MUAC measurement. Edema is a critical clinical sign that overrides the anthropometric measurement.

How to Approach the Question

Identify the key terms in the question: 'WHO', 'severe PEM', and 'MUAC'.
Recall the specific numerical cutoffs established by the World Health Organization for classifying nutritional status in children using MUAC.
Focus on the keyword 'severe'. This points to the most critical category, which is associated with the lowest measurement value.
Compare the standard WHO cutoff for severe acute malnutrition, which is less than 11.5 cm, with the given options.
Select the option that correctly matches this critical value.

Concept Tested & Keywords

Concept Tested: WHO criteria for classifying severe Protein-Energy Malnutrition (PEM) using Mid-Upper Arm Circumference (MUAC).
Stem keywords: WHO, severe PEM, MUAC
Lead-in keywords: is described if

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