This document discusses protein-energy malnutrition (PEM) in infants and children. It defines malnutrition and the specific forms of PEM, including marasmus and kwashiorkor. For kwashiorkor, it covers the pathophysiology, etiology, clinical signs and symptoms, laboratory findings, and complications. For marasmus it discusses the definition, etiology, clinical assessment, and differences from kwashiorkor. The document also outlines the WHO's 10 steps for recovery from malnutrition and provides a nursing care plan to address malnutrition through dietary interventions and maintaining appropriate body temperature.