An 8-year-old boy is brought to the child psychiatry clinic by his mother with complaints of inattention, hyperactivity, and impulsivity at school for the past 18 months. The teacher reports difficulty in following instructions and frequent disruption of class. On clinical interview, the child meets DSM-5 criteria for ADHD, combined presentation. The mother denies any significant past medical or psychiatric history. Physical examination and basic investigations are normal. What is the most appropriate next step in management?

Explanation

## Diagnostic Confirmation and Baseline Assessment Before Treatment **Key Point:** Before initiating pharmacotherapy for ADHD, a comprehensive baseline assessment including detailed developmental and school history, validated rating scales, and screening for comorbidities is essential. This is the standard of care in child psychiatry. **High-Yield:** The diagnostic process for ADHD in children requires: 1. Detailed history from multiple informants (parents, teachers) 2. Validated rating scales (Conners Rating Scale, Vanderbilt ADHD Rating Scale) 3. Assessment for comorbid conditions (learning disorders, oppositional defiant disorder, anxiety, depression) 4. Baseline physical examination and vital signs before medication 5. Documentation of symptom onset, duration, and functional impairment across settings **Clinical Pearl:** Rating scales like the Vanderbilt ADHD Rating Scale provide quantitative baseline data essential for: - Confirming diagnosis - Identifying comorbidities - Measuring treatment response at follow-up - Adjusting medication dosage objectively ## Why This Step Comes First According to standard ADHD management guidelines, the sequence is: 1. **Comprehensive assessment** (history, examination, rating scales) 2. **Comorbidity screening** (learning disorders, ODD, anxiety, mood disorders) 3. **Baseline vital signs and physical examination** 4. **Initiation of pharmacotherapy** (if indicated) 5. **Regular monitoring and titration** **Mnemonic:** **CHAD** = **C**omprehensive assessment, **H**istory from multiple sources, **A**ssessment of comorbidities, **D**osing after baseline ## Pharmacotherapy Timing While methylphenidate and atomoxetine are both evidence-based treatments for ADHD, they should be initiated only after: - Confirmed diagnosis using DSM-5 criteria - Baseline rating scales documented - Comorbidities ruled out or identified - Parent and child counseled on medication effects and behavioral strategies [cite:DSM-5 ADHD diagnostic criteria; AACAP Practice Parameters for ADHD]