Exploring Both Autism and ADHD During an Assessment
An ADHD explanation may fit some experiences while leaving others unanswered. An autism assessment may raise similar questions about attention or impulsivity. It is reasonable to ask whether both conditions should be considered.
Ask what the assessment covers
AuDHD is a common community term for co-occurring autism and ADHD, not a separate formal diagnosis. Ask whether the provider assesses both conditions, has experience with your age group, and can arrange another referral if needed. A service that evaluates one condition may not provide a full assessment for the other. [1]
Before booking, check qualifications and regional licensure, methods, report contents, costs, expected waiting time, and follow-up. Ask whether findings can be shared between providers with your consent so you do not have to repeat every part of the story.
Bring a whole-life picture
Write examples involving attention, activity, planning, communication, routines, interests, sensory needs, and daily living. Include what happened in childhood, what happens now, and how the pattern changes across settings.
Record both the visible outcome and the effort involved. “I arrive on time because I start preparing hours early and cannot do anything else that morning” gives different information from simply “I am punctual.” Include supports that make a difficulty less noticeable.
Expect clinical judgment across several methods
Assessment commonly draws on interviews, developmental history, questionnaires, and appropriate observations or other tools. With consent, information from caregivers, teachers, partners, or records may help. Expert consensus guidance emphasizes a comprehensive approach to overlapping presentations rather than relying on rating scales alone. [1]
Screening scores cannot confirm either condition. A behavior such as interrupting may have more than one explanation, and a clinician should consider its context and development. Ask how the provider avoids attributing every difficulty to a diagnosis you already have.
Consider co-occurring and alternative explanations
Sleep problems, anxiety, depression, trauma-related difficulties, learning or language differences, substance use, and physical health concerns can affect functioning. Some may coexist with autism and ADHD. The aim is an accurate account of your needs, not the greatest possible number of labels.
Ask which questions remain unanswered and whether additional assessment is recommended. If developmental information is missing, discuss what can still be concluded and where uncertainty remains.
United States and Canada: plan locally
In the United States, ask a primary care or mental health professional about suitable services and verify insurance coverage and state requirements. In Canada, check provincial or territorial pathways and the provider's eligibility for coverage. CAMH's ADHD resource and Autism Ontario's adult assessment guidance illustrate that separate service routes may be involved. [2] [3]
Adult and child pathways differ. A school's support evaluation may contribute information without replacing clinical assessment. Do not assume one report will automatically qualify someone for every service.
Takeaway
Ask for a coordinated assessment of the whole pattern. Leave with an explanation of findings, uncertainty, support needs, and next steps—including care for difficulties that neither diagnosis fully explains.
Sources
- Young and colleagues (2020): Autism and ADHD expert consensus
- CAMH: ADHD in adults—finding help (PDF)
- Autism Ontario: Adult assessment
Related reading
- Getting Assessed for ADHD: What the Process Usually Involves
- Getting Assessed for Autism: What to Expect
- What Is AuDHD? Understanding Co-occurring Autism and ADHD
Educational information, not personal medical advice or a diagnostic tool. AI-written for Brain on Shuffle; not medically reviewed. Consult a qualified professional about individual concerns.