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Difficulty: MediumNormal Growth and Development

During a routine health supervision visit, a pediatrician evaluates a 3-year-old female. She was born full-term with an uncomplicated neonatal course. Observations and parental reports indicate she can pedal a small tricycle, build a tower of nine blocks, and successfully unbutton her coat. She enjoys engaging in pretend play with her older sister and consistently follows two-step verbal instructions. Her parents report that she primarily communicates using two-word phrases, such as "want milk" and "go outside." Additionally, extended family members can only understand approximately half of her spoken words. Physical examination reveals normal tympanic membranes and a clear oropharynx. Which of the following is the most appropriate next step in management?

  1. A
    Arrange a multidisciplinary evaluation for autism spectrum disorder
  2. B
    Counsel the family that her communication skills are expected for her age
  3. Perform a comprehensive audiological evaluationAnswer
  4. D
    Schedule a follow-up visit in six months to reassess language progress
  5. E
    Obtain a chromosomal microarray and fragile X DNA testing

Answer

Perform a comprehensive audiological evaluation.
This patient exhibits an isolated expressive language delay. At 3 years of age, a child should typically be speaking in three-word sentences, and their speech should be 75% intelligible to unfamiliar listeners. This patient is using two-word phrases and is only 50% intelligible, which aligns more closely with a 2-year-old's milestones. However, her gross motor (riding a tricycle), fine motor (unbuttoning, copying a circle), and social/play skills are entirely age-appropriate. The most appropriate first step in evaluating any pediatric speech or language delay is a formal, comprehensive audiological evaluation to rule out hearing impairment. This is mandated even if the parents believe the child's hearing is normal or the office physical exam shows normal tympanic membranes, as early intervention is critical for optimal developmental outcomes.

Step-by-Step Solution

1
Assess the child's developmental milestones across all domains (gross motor, fine motor, social, and language).
Gross motor (pedals tricycle), fine motor (unbuttons, builds 9-block tower), and social skills (pretend play) are age-appropriate for a 3-year-old. Expressive language (two-word phrases, 50% intelligibility) aligns with a 2-year-old's milestones.
Comparing the patient's abilities to standardized developmental milestones identifies whether a delay is isolated or global.
2
Identify the primary developmental abnormality.
The patient has an isolated expressive language delay.
By age 3, a child should use three-word sentences and be 75% intelligible to strangers.
3
Determine the standard initial management for the identified delay.
A formal hearing test is indicated.
Undiagnosed hearing impairment is a common, correctable cause of language delay and must be ruled out before pursuing speech therapy or more extensive testing.

Key Concept

Any child presenting with delayed speech or language milestones must undergo a formal, comprehensive audiological evaluation as the initial diagnostic step, regardless of clinical exam findings or parental perceptions of hearing.
Estimated Time:1m 0s
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Topics

Normal Growth and Development

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