Developmental Milestones: Toddler (12 – 36

Toddlerhood (12-36 months) is one of the most developmentally dynamic periods of childhood. In just 2 years, children progress from first steps and first words to running, climbing, speaking in short sentences, and asserting independence with enthusiasm. Understanding this trajectory is essential for every aspect of toddler nursing care — from how to approach assessment (adapt everything to minimize distress), to how to interpret behaviour (negativism is healthy, not defiant), to how to guide parents through one of the most challenging developmental phases. For the REx-PN exam, toddler milestones appear in scenarios about regression during hospitalization, developmental screening, parent teaching, procedure preparation, and pain assessment tool selection. The most commonly tested red flags are language delays and the developmental context of behaviours (regression, negativism, toilet training challenges). A solid grasp of toddler development is foundational to safe, developmentally appropriate pediatric nursing practice. On the exam, writers often pair stable-sounding options with unstable data—notice the mismatch before you commit. If the stem names a license or role, reread that line; scope errors are classic trap answers even when the clinical topic...