A 18-month-old boy is brought to the pediatric clinic by his mother who reports that he is not yet speaking meaningful words, though he babbles and points to objects. His motor milestones are normal — he walks independently and climbs stairs with support. On examination, he responds to his name and follows simple commands. What is the most appropriate next step in management?

Explanation

## Clinical Context This 18-month-old presents with **expressive language delay** (absent meaningful words) while comprehension and motor development are intact. This is a red flag for language disorder that requires prompt specialist evaluation. ## Developmental Milestone Norms at 18 Months **Key Point:** By 18 months, a child should have: - 10–50 meaningful words (not just babbling) - Ability to follow 1–2 step commands - Pointing and joint attention - Saying "mama" and "dada" with meaning This child has **failed to meet expressive language milestones** despite normal comprehension and motor skills. ## Why Formal Assessment is the Next Step **High-Yield:** Before starting intervention, you must: 1. **Rule out hearing loss** — the most common reversible cause of language delay in this age group 2. **Assess speech-language development** — to quantify the delay and identify specific deficits (phonology, vocabulary, syntax) 3. **Establish baseline** — needed to measure response to therapy **Clinical Pearl:** Audiological assessment is non-negotiable in any child with language delay, as even mild-to-moderate hearing loss may not be obvious on casual observation. ## Management Algorithm ```mermaid flowchart TD A["18-month-old with expressive language delay"]:::outcome --> B{"Hearing intact?"}:::decision B -->|"No"| C["Treat hearing loss"]:::action B -->|"Yes"| D["Speech-language pathology assessment"]:::action D --> E["Start early intervention / speech therapy"]:::action E --> F["Review at 3–6 months"]:::action ``` **Mnemonic:** **ALERT** — **A**udiological assessment, **L**anguage evaluation, **E**arly intervention referral, **R**eview progress, **T**herapy initiation [cite:Park 26e Ch 2]