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Adult ADHD Assessment 

What is Adult ADHD?


Attention Deficit Hyperactivity Disorder (ADHD) is a lifelong neurodevelopmental condition that affects attention, impulse control, emotional regulation, and executive functioning. Many adults reach adulthood without a diagnosis, often attributing longstanding difficulties to stress, anxiety, or personality rather than ADHD.A specialist adult ADHD assessment provides clarity, explanation, and evidence-based guidance. It can help you understand your experiences and determine appropriate next steps.

Adult ADHD may present differently from childhood ADHD and varies significantly between individuals. Common features include difficulties with sustained attention, organisation, time management, emotional regulation, and impulse control. Many adults develop coping strategies that mask symptoms, delaying diagnosis until later in life.​

Who Is an Adult ADHD Assessment For?

An adult ADHD assessment may be appropriate if you experience persistent difficulties that impact daily functioning, work, or relationships and have been present since childhood or early adulthood

  • Chronic disorganisation or poor time management

  • Difficulty completing tasks despite effort

  • Problems with focus, memory, or concentration

  • Emotional overwhelm or irritability

  • Recurrent work or relationship difficulties

  • Previous diagnoses that do not fully explain symptoms

What Does an Adult ADHD Assessment Involve?

 

1. Detailed Clinical History
Includes developmental history, educational and occupational background, mental health history, and current difficulties.

2.Symptom Assessment
A review of ADHD symptoms across different settings, using recognised diagnostic criteria and structured assessment tools where appropriate.

3.Differential Diagnosis
Consideration of other conditions that may overlap with ADHD to ensure diagnostic accuracy.

4.Diagnosis and Report
Clear diagnostic outcome and a written report explaining findings and recommended next steps.

5.Why Specialist Assessment Matters
ADHD is a complex condition that requires careful clinical assessment. Specialist evaluation reduces the risk of misdiagnosis and ensures appropriate, evidence-based recommendations tailored to the individual.

What happens after the assessment?
Following assessment, outcomes may include discussion of treatment options, non-pharmacological strategies, lifestyle adjustments, and guidance on ongoing support. Where appropriate, information can be shared with your GP with consent.

This page provides clinical information about adult ADHD assessment in the UK. Dr Nancy Allen is a GMC-registered GP providing specialist private ADHD assessments for adults. Assessments follow recognised diagnostic criteria and include a full clinical evaluation, diagnostic outcome, and written report. This information is intended for clarity and education and does not replace personalised medical advice.

Adult ADHA

Book an Adult ADHD Assessment
If you are seeking clarity and specialist clinical assessment, you can book an adult ADHD assessment using the link below.

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