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ADHD · Saint‑HyacintheChildren from age 8 · Adolescents · Adults
Understanding ADHD
ADHD is much more than a lack of attention
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder that can affect attention, organization, time management, impulse control and, in some people, activity level.
It begins in childhood, but can persist into adolescence and adulthood.
ADHD does not present the same way in everyone. A person may mainly experience attention difficulties, show more hyperactivity and impulsivity, or show a combination of these features.
Above all, being distracted, active or disorganized from time to time does not necessarily mean having ADHD.
For ADHD to be considered, the symptoms must be persistent, have a significant impact on functioning and be assessed in context.
Presentations
How can ADHD manifest itself?
Three presentations are generally recognized.
Inattention
The difficulties mainly involve attention, organization and the ability to sustain mental effort.
The person may, for example:
have difficulty sustaining attention;
be easily distracted;
regularly forget certain tasks or appointments;
frequently lose things;
have difficulty finishing what they start;
procrastinate;
have difficulty organizing and prioritizing tasks;
make careless mistakes;
have difficulty following multiple instructions;
sometimes seem to be “daydreaming.”
Hyperactivity and impulsivity
The person may, for example, show:
a frequent need to move;
restlessness;
difficulty staying seated for long periods;
a tendency to talk a lot;
difficulty waiting their turn;
a tendency to interrupt;
quick or impulsive reactions;
difficulty slowing down;
a feeling of being constantly on the go.
In adolescents or adults, hyperactivity may be much less visible than it was during childhood and may show up more as inner restlessness or as a need to be constantly busy.
Combined presentation
Some people show significant signs of both inattention and hyperactivity or impulsivity.
The presentation of ADHD can also change over the course of life.
Children
ADHD in children
At Clinique IPS du Palais, our ADHD assessment pathway is offered to children aged 8 and older, as well as to adolescents and adults.
In children, difficulties sometimes become more obvious as school demands increase.
For example, the following may be observed:
difficulty staying focused in class;
instructions quickly forgotten;
school supplies regularly misplaced;
homework that takes a particularly long time;
difficulty finishing certain tasks;
significant disorganization;
difficulty waiting their turn;
impulsivity;
restlessness;
difficulty managing transitions;
very inconsistent school performance.
However, an active or distracted child does not necessarily have ADHD.
The child’s age, development, environment, sleep, school functioning, psychological state and several other factors must be considered.
Adolescents
ADHD in adolescents
Adolescence brings new demands: more independence, several teachers, more assignments to plan and a more complex daily organization.
Difficulties may appear, for example, in the form of:
significant procrastination;
assignments handed in late;
difficulty planning studies;
frequent forgetfulness;
disorganization;
difficulty managing several responsibilities;
impulsivity;
highly variable motivation;
relationship difficulties;
poor sleep habits.
Some adolescents have long managed to compensate for their difficulties. These then become more visible as the structure provided by parents or school decreases.
Adults
ADHD in adults
ADHD can persist into adulthood.
The signs are sometimes less obvious than in children.
They may affect, for example:
Organization
procrastination;
tasks piling up;
frequent forgetfulness;
difficulty setting priorities;
poor time estimation;
difficulty maintaining certain routines.
Work or studies
difficulty maintaining attention during meetings or classes;
projects started but not finished;
difficulty with long or repetitive tasks;
careless mistakes;
difficulty meeting certain deadlines.
Daily life
things regularly misplaced;
forgotten appointments;
difficulty with administrative tasks;
feeling constantly overwhelmed;
time management difficulties.
Relationships
unintentional interruptions;
difficulty listening until the end;
impulsive reactions;
forgetfulness that may be misinterpreted by those around them.
The Gouvernement du Québec points out that ADHD can affect functioning at home, at school, at work and in relationships.1
Attention
Being able to concentrate does not rule out ADHD
A person living with ADHD is not incapable of paying attention.
The difficulty has more to do with regulating attention.
Some people can be extremely focused when an activity is:
particularly interesting;
stimulating;
new;
urgent;
tied to an immediate deadline.
Conversely, a monotonous or unstimulating activity can require an enormous amount of effort.
This is why a person can spend several hours focused on an activity they are passionate about and have great difficulty completing an administrative task that takes a few minutes.
Executive functions
Executive functions: an important piece of the puzzle
Executive functions allow us, among other things, to:
start a task;
plan;
organize;
set priorities;
manage our time;
maintain our attention;
resist distractions;
keep certain information in mind during a task;
control certain impulses;
switch efficiently from one task to another.
Some of these abilities may be harder to draw on for a person with ADHD.
A person may therefore know very well what they should do, but have more difficulty turning that intention into action consistently.
A questionnaire alone cannot diagnose ADHD
Questionnaires are useful.
But they are one part of the assessment, not the diagnosis on their own.
According to CADDRA, the assessment of ADHD must consider, among other things, the symptoms, their functional impact and the various medical, psychiatric, psychosocial, academic or occupational dimensions that may influence the clinical picture.2
There is therefore no single blood test, questionnaire or test that can automatically answer:
“Yes, you have ADHD” or “No, you don’t.”
Telling them apart
ADHD… or something else?
This is an essential question.
Difficulties with concentration, organization, memory or impulsivity can have several causes.
Depending on the situation, it may be relevant to explore, among other things:
anxiety;
depression;
learning disorders;
sleep difficulties or disorders;
certain behavioural issues;
other neurodevelopmental disorders;
certain psychosocial difficulties;
substance use;
certain medications;
certain medical conditions.
Some of these conditions can resemble ADHD.
Others may be present at the same time as ADHD.
The Gouvernement du Québec notes, among other things, that learning disorders, anxiety and depressive disorders, and certain behavioural disorders are frequently associated with ADHD.1
This is why a good assessment does not seek only to confirm ADHD.
It first seeks to understand what explains the person’s difficulties.
Our approach
How does an ADHD assessment work at Clinique IPS du Palais?
Our approach is intended for children aged 8 and older, adolescents and adults.
It is based on a step-by-step approach that considers medical, psychological, academic, family and psychosocial aspects alike.
Step 1
First meeting: understanding the whole situation
The process begins with an initial assessment with Marie-Claude Tessier, primary care nurse practitioner (PHCNP).
The purpose of this meeting is not to assume that it is necessarily ADHD.
Rather, we seek to answer an essential first question:
Are the difficulties observed consistent with ADHD, or could they be explained by something else?
Marie-Claude TessierPHCNP
This initial assessment makes it possible to review, among other things:
current symptoms;
how they have changed over time;
whether they were present during childhood;
their impact at school, at work, at home or in relationships;
personal and family medical history;
physical health;
mental health;
sleep;
lifestyle habits;
current medication;
ADHD-related questionnaires;
previous assessments.
Documents
Documents you already have are important
This information helps us better understand how the difficulties show up in different settings.
However, not all of it is required to begin the process.
CADDRA in fact recommends an assessment that goes beyond the mere presence of symptoms and takes into account the person’s overall functioning and the various factors that can complicate or mimic ADHD.2
When available, we can also include in the assessment:
questionnaires completed by the patient;
questionnaires completed by the parents;
observations or questionnaires from the school;
relevant report cards;
intervention plans;
psychology reports;
neuropsychology reports;
psychoeducation assessments;
speech-language pathology or occupational therapy assessments;
recommendations from professionals;
previous medical assessments.
Looking for associated conditions
The initial assessment also makes it possible to screen for certain comorbidities, that is, conditions that may accompany ADHD.
This step is important because the treatment strategy may be different when a person has, for example, ADHD along with an anxiety disorder, a mood disorder, a learning disorder or another issue.
The goal is to avoid treating a symptom in isolation without understanding the overall picture.
Safety
A medical assessment before considering medication
When pharmacological treatment might be appropriate, the assessment also includes looking for the information needed to determine whether medication can be considered safely.
Tests or blood work may also be ordered when the clinical situation warrants it.
A blood test is therefore not automatically necessary for every ADHD assessment.
Depending on their specialty class and scope of practice, NPs carry out advanced professional activities that include, among other things, ordering diagnostic tests, determining medical treatments and prescribing medications.3
Depending on the situation, this may include, among other things:
medical history;
relevant family history;
medications currently being used;
other substances used;
certain physical parameters;
precautions or contraindications associated with the treatment being considered;
concurrent conditions that may influence the choice of treatment.
Step 2
Care with an MHNP
Following the initial assessment, the process continues with our mental health nurse practitioner (MHNP) when this care is indicated.
The MHNP has advanced training and particular expertise in mental health.
She can continue and deepen the assessment in order to integrate all the information gathered and establish a care strategy tailored to the person.
Carole GauthierMHNP
Depending on the situation, her involvement may include, among other things:
a more in-depth diagnostic assessment;
assessment of symptoms;
analysis of questionnaires and reports;
screening for and assessment of associated conditions;
diagnosis when it falls within her scope of practice;
establishing a treatment plan;
prescribing medication when it is indicated;
adjusting treatment;
assessing its effectiveness;
monitoring for side effects;
tracking changes in functioning.
The MHNP is one of the five NP specialty classes recognized in Quebec. NPs can, among other things, diagnose diseases, order diagnostic tests, determine medical treatments and prescribe medications, within the scope of their specialty and practice.3
Step 3
When medication is part of treatment
Medication may be relevant for some people, but it is not automatically the only intervention offered.
Several medications can be used to treat ADHD.
They include stimulant and non-stimulant medications, among others.
The choice depends on several factors:
age;
symptoms;
their impact;
medical conditions;
associated mental health problems;
medications already being used;
response to previous treatments;
adverse effects;
the desired duration of action;
the person’s particular needs.
Two people with ADHD may therefore receive different treatments.
Follow-up
Finding the right treatment may require adjustments
When medication is started, follow-up is important.
The medication can then be adjusted based on the clinical response.
The goal is not to change a person’s personality.
The goal is to reduce the difficulties enough to improve daily functioning while maintaining good tolerance of the treatment.
Follow-up makes it possible to monitor, among other things:
improvement in symptoms;
improvement in functioning;
the duration of the effect;
adverse effects;
sleep;
appetite;
certain physical parameters when necessary.
Step 4
Care that goes beyond medication
Treating ADHD does not just mean prescribing a medication.
When it may be beneficial, complementary work can be done with our social worker.
Even when medication improves attention or impulsivity, some difficulties may remain:
disorganization;
problems with routines;
family difficulties;
managing emotions;
relationship problems;
low self-esteem;
adjustment difficulties;
overload;
habits developed over the years.
Social work
Psychosocial support
The social worker can support the child, adolescent, adult or family according to the needs identified.
Her approach makes it possible to work on the concrete consequences of ADHD in everyday life.
The Gouvernement du Québec also recognizes the role of psychosocial and behavioural interventions, school accommodations and lifestyle habits in the management of ADHD.1
At Clinique IPS du Palais, the pathway can therefore bring together several areas of expertise.
1
First step
Comprehensive assessment with Marie-Claude Tessier, PHCNP
Understanding the difficulties, analyzing the available questionnaires and documents, looking for other possible explanations, screening for comorbidities and completing the medical assessment.
2
Second step
Specialized care with the MHNP
Deepening the mental health assessment, establishing or clarifying the diagnostic process and determining the appropriate treatment plan.
3
Third step, when necessary
Support with the social worker
Working on daily functioning, strategies, relationships, the environment and the psychosocial dimensions that may influence the situation.
This collaboration makes it possible to approach the person as a whole rather than treating only a symptom.
Strategies
Medication is only one part of the possible solutions
Depending on needs, various strategies can complement care.
Organization
use a planner or calendar;
keep all tasks in one place;
break large tasks into smaller ones;
use short lists;
prepare certain things the night before;
keep important items in fixed places.
Time management
use timers;
set reminders;
set a specific time rather than “later”;
allow a buffer between activities;
make time more visible.
Environment
limit distractions when concentration is needed;
reduce certain notifications;
work in a suitable environment;
simplify routines.
School and work
Depending on the situation, some people may also benefit from strategies or accommodations that reduce the functional impact of their difficulties.
Lifestyle habits
Sleep and lifestyle habits matter too
It is therefore important to assess sleep when a person seeks care for concentration difficulties.
Physical activity, a balanced diet, stress management and assessing the use of caffeine, alcohol, cannabis or other substances can also be part of a comprehensive approach.
These measures do not replace treatment when ADHD is present, but they can contribute to overall functioning.
Insufficient or poor-quality sleep can contribute to difficulties with:
attention;
memory;
organization;
impulsivity;
mood.
Myths and facts
Some misconceptions about ADHD
“Everyone is a little ADHD”
Everyone can be distracted or disorganized from time to time.
In ADHD, the signs are persistent and have a significant impact on functioning.
“A very active child necessarily has ADHD”
No.
Behaviour must be assessed in light of the child’s age and development, and in different settings.
“If I did well in school, I can’t have ADHD”
No.
Some people do well thanks to their abilities, a highly structured environment or significant compensation strategies.
School performance is only one part of the picture.
“You have to be hyperactive to have ADHD”
No.
Some people mainly have difficulties with attention and organization.
“My questionnaire is positive, so I have ADHD”
Not necessarily.
Questionnaires provide useful information but must be interpreted in the context of a more complete assessment.
“Treating ADHD just means taking a psychostimulant”
No.
Care may include a combination of medication, psychoeducation, organizational strategies, psychosocial interventions, school or workplace accommodations and improvements to certain lifestyle habits.
Care can therefore be tailored to each person’s needs.
The right time
When should an assessment be considered?
An assessment may be relevant when persistent difficulties with attention, organization, hyperactivity or impulsivity begin to have a significant impact on:
school;
work;
family;
relationships;
organization;
independence;
daily functioning.
The Gouvernement du Québec recommends, among other things, seeking care when symptoms cause distress, interfere with functioning or affect relationships, and have persisted for more than six months.1
Preparing for your visit
What should you bring to the first appointment?
You do not need to have all these documents to begin the process.
They simply help us get a more complete picture when they are available.
If you have them, some documents can be particularly useful:
ADHD questionnaires already completed;
questionnaires from the school;
intervention plans;
relevant report cards;
psychology reports;
neuropsychology reports;
psychoeducation reports;
speech-language pathology or occupational therapy reports;
professional recommendations;
previous medical assessments;
current list of medications.
Our goal: understand before treating
An ADHD assessment should not begin with a search for a medication.
It should begin with a question:
What explains the difficulties being experienced?
Sometimes, the picture is consistent with ADHD.
Sometimes, another condition better explains the symptoms.
And sometimes, several conditions are present at the same time.
Our approach aims to make this distinction and then build care tailored to the person.
Children aged 8 and older · Adolescents · Adults
Wondering about possible ADHD?
A first meeting is an opportunity to take stock of your situation, the symptoms present and the assessments or documents already available.
Gouvernement du Québec. Trouble du déficit de l’attention avec ou sans hyperactivité (TDAH), last updated December 9, 2024, accessed October 1, 2026. quebec.ca
CADDRA — Canadian ADHD Resource Alliance. Lignes directrices canadiennes sur le TDAH, edition 4.1, accessed October 1, 2026. caddra.ca — Canadian ADHD Practice Guidelines, 4.1 Edition, core principles (assessment and diagnosis). PDF
Ordre des infirmières et infirmiers du Québec (OIIQ). Rôle de l’IPS, accessed October 1, 2026. oiiq.org
The information on this page is provided for informational purposes and does not replace a consultation with a professional.