diagnostic service

ADHD Assessment

A dedicated diagnostic service for adults who may be experiencing symptoms of Attention-Deficit/Hyperactivity Disorder (ADHD).

Who should consider an ADHD assessment?

You may benefit from an ADHD assessment if you have long-standing difficulties that affect your daily life, work, or education. Many adults seek assessment after recognising patterns that have been present since childhood but only recently became more noticeable.

Common reasons people seek assessment include:

These experiences can affect academic performance, employment stability, relationships, and self-esteem.

Common adult presentations of ADHD

ADHD in adults does not always look like hyperactivity. Many individuals present with subtle but persistent executive functioning difficulties.

You may notice:

  • Difficulty sustaining attention during tasks or conversations
  • Losing track of time or deadlines
  • Starting multiple tasks but struggling to complete them
  • Feeling mentally overwhelmed by planning or organisation
  • Emotional impulsivity or frustration
  • A tendency to hyperfocus on specific interests while neglecting others
  • Restlessness, either physical or internal

ADHD can vary widely between individuals and may coexist with other neurodevelopmental or mental health conditions.

What the assessment includes

Our ADHD assessment is a structured clinical process designed to meet recognised diagnostic standards, including guidance from NICE ADHD Guideline NG87.

Your assessment may include:

  • A comprehensive clinical interview
  • Developmental history (childhood and schooling experiences)
  • Use of validated ADHD assessment tools and rating scales
  • Review of supporting information where appropriate (e.g. school reports, GP records, or informant feedback)
  • Differential diagnosis to consider other possible explanations
  • Diagnostic formulation based on clinical evidence
  • A detailed written report with findings and recommendations

Duration of the assessment

The full assessment process typically involves approximately 2 to 3 hours of clinician time, which may be divided across stages.

This includes:

  • Pre-assessment questionnaires completed at home
  • Collateral history (where available and appropriate)
  • Clinical interview with a specialist clinician
  • In-depth diagnostic evaluation and formulation

Additional time may be required for review of external information.

What happens afterwards?

Following completion of your assessment, you will receive a clear clinical outcome.

If diagnostic criteria are met, you will receive:

  • A formal diagnosis (where appropriate)
  • A comprehensive written clinical report
  • Individualised recommendations for support and management

Your report can be shared (with your consent) with:

  • Your GP
  • Employers (for workplace adjustments)
  • Educational institutions

Treatment and medication

Insight Neurodevelopment Clinic provides diagnostic assessment only.

We do not provide:

  • Medication initiation
  • Prescription services
  • Medication titration or ongoing prescribing
  • Pharmacological treatment management

If ADHD is diagnosed, we can advise on appropriate next steps, including referral options and discussion with your GP regarding treatment pathways if needed.

Taking the next step

If you recognise the difficulties described above and would like clarity, an ADHD assessment can help you better understand your cognitive profile and identify appropriate support strategies. To begin the process, you can contact the clinic to arrange an initial consultation or complete a referral form.

Important Notice

Insight Neurodevelopment Clinic provides ADHD and Autism assessments and diagnostic services only.

We do not prescribe medication, provide ongoing treatment, or offer medication management.

If you require treatment following your assessment, we will provide a comprehensive diagnostic report by our Consultant Psychiatrist that you can discuss with your GP or an appropriate specialist.