A 14-month-old boy from rural Maharashtra is brought to the pediatric ward with severe weight loss. On examination, he weighs 5.2 kg (< 3rd percentile for age), has visible ribs and hip bones, loose skin folds, and a characteristic "old man face" appearance with loss of cheek fullness. There is no pitting edema. His mid-upper arm circumference (MUAC) is 9.8 cm. The clinical presentation shown in the diagram as **A** (Marasmus) is consistent with this child's findings. According to WHO criteria for Severe Acute Malnutrition (SAM), which of the following is the MOST appropriate initial management step during the stabilization phase?

Explanation

## Why REOMAL with careful fluid monitoring is right The clinical presentation of **A** (Marasmus) — severe wasting, old man face, no edema — indicates total calorie deficiency with significant intracellular electrolyte depletion (particularly potassium and magnesium). During WHO's STABILIZATION PHASE (days 1–7) of SAM management, the cornerstone of fluid therapy is REOMAL (rehydration solution for malnutrition), which contains LOWER sodium and HIGHER potassium than standard ORS. This prevents circulatory overload and fluid-responsive complications (congestive heart failure, pulmonary edema) that can occur when standard high-sodium ORS is given to malnourished children with compromised cardiac reserve. REOMAL is specifically formulated to correct the electrolyte deficits characteristic of marasmus while avoiding iatrogenic harm (Nelson 21e; WHO SAM Guidelines). ## Why each distractor is wrong - **High-protein F-100 immediately at 150 mL/kg/day**: F-100 is the REHABILITATION-phase formula (Phase 2, after edema resolves and appetite returns). The STABILIZATION phase (Phase 1) requires F-75 (low protein, low sodium, 75 kcal/100 mL) at ~100 mL/kg/day in frequent small feeds to prevent refeeding syndrome. Jumping to F-100 with high-volume feeding risks fatal hypophosphatemia, hypokalemia, and cardiac arrhythmias. - **Iron supplementation with antibiotics in stabilization phase**: While broad-spectrum antibiotics are correct (all SAM children receive empiric coverage), iron is WITHHELD during stabilization because it worsens infection risk in the immunocompromised state. Iron is added only in the rehabilitation phase after infection is controlled. This option conflates two different management phases. - **Rapid IV normal saline resuscitation**: IV fluids are avoided in SAM except for shock (which this child does not have). Standard IV saline is high in sodium and risks fluid overload, CHF, and pulmonary edema in the setting of depleted intracellular electrolytes and cardiac fragility. Oral/NG rehydration with REOMAL is the standard of care. **High-Yield:** REOMAL (not standard ORS) is the rehydration solution of choice in SAM stabilization; it prevents refeeding syndrome and circulatory complications by providing low sodium and high potassium — matching the electrolyte depletion pattern in marasmus. [cite: Nelson Textbook of Pediatrics 21e; WHO Guidelines for the Management of Severe Acute Malnutrition in Infants and Children]