Which of the following is NOT included in the World Health Organization (WHO) criteria for severe acute malnutrition in children?

Appeared in: NHM UP Staff Nurse-2023 Shift-2nd

Explanation

A fixed Body Mass Index (BMI) cutoff is not used for diagnosing malnutrition in children because their body composition changes rapidly with age and growth.
For children, BMI-for-age Z-scores are used, which compare the child's measurement to a reference population of the same age and sex.
A BMI of 18 can be a normal value for a child at a certain age, whereas it might indicate underweight in an adult. Therefore, it is not a reliable standalone criterion for pediatric SAM.
The WHO criteria for SAM in children rely on more specific indicators like weight-for-height Z-score, Mid-Upper Arm Circumference (MUAC), and the presence of oedema.

Option A: This is one of the three independent diagnostic criteria for Severe Acute Malnutrition (SAM). A weight-for-height Z-score below -3 standard deviations from the median indicates severe wasting.
Option C: Visible severe wasting is a key clinical sign of marasmus, a form of SAM. It is the physical manifestation of a very low weight-for-height.
Option D: The presence of bilateral pitting oedema of nutritional origin is the defining feature of kwashiorkor, a severe form of acute malnutrition. Its presence alone is sufficient for a SAM diagnosis.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain WHO Criteria for Severe Acute Malnutrition (SAM) as background academic context rather than a clinical decision trigger.
Accurate identification of SAM using the correct WHO criteria is critical for initiating timely and appropriate life-saving treatment, such as Ready-to-Use Therapeutic Food (RUTF).
SAM is a major cause of death in children under five. A child with SAM is nine times more likely to die than a well-nourished child.
Nurses play a vital role in screening children in communities and clinical settings using MUAC tapes and checking for oedema, as these are rapid and effective methods for identifying children at risk.

How to Approach the Question

First, identify the negative framing of the question by spotting the keyword 'NOT'. This means you are looking for the option that is an exception or incorrect.
Next, recall the specific diagnostic criteria for Severe Acute Malutrition (SAM) in children as defined by the WHO.
The three main criteria are: 1) Weight-for-height/length Z-score < -3 SD, 2) Mid-Upper Arm Circumference (MUAC) < 115 mm, and 3) Bilateral pitting oedema.
Evaluate each option against these criteria.
Option A (Weight-for-height < -3 SD) is a core criterion.
Option C (Visible severe wasting) is a clinical sign directly related to a low weight-for-height.

Concept Tested & Keywords

Concept Tested: WHO Criteria for Severe Acute Malnutrition (SAM)
Stem keywords: World Health Organization (WHO), criteria, severe acute malnutrition, children
Lead-in keywords: NOT included
Negative lead-in flag: Question asks for the EXCEPTION

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E6 Parks TextBook of Preventive & Social Medicine part 2 — Subpart A (pp 1-232 of 464) p. 177-179

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 pp. 468-470, 478-480

Practise the full NHM UP Staff Nurse-2023 Shift-2nd

Attempt every question from this paper in a timed mock, then review the full solution for each one.