Alzheimer’s Disease Diagnosis
Repeating questions, missing appointments or struggling to follow conversations may leave families wondering whether these changes could be signs of Alzheimer’s disease. Seeking medical advice can help identify the cause and guide appropriate care.
Changes in memory and thinking can develop gradually and may be mistaken for normal ageing. Occasionally forgetting an appointment is common with ageing. Repeatedly missing appointments or finding familiar activities increasingly difficult may warrant further assessment.
Memory problems do not always indicate Alzheimer’s disease. Depression, medication side effects, untreated sleep apnoea, thyroid problems and certain vitamin deficiencies can cause similar symptoms. Some of these conditions can improve with treatment.
A family doctor or general practitioner can be the first point of contact. They may refer the person to a dementia specialist, such as a neurologist, geriatrician or psychiatrist, for further assessments.
The assessment usually includes a discussion about symptoms, medical history, current medicines and changes in everyday activities. With the person’s agreement, someone who knows them well can provide useful information.
Memory and thinking tests help assess abilities such as recall, language and problem-solving. Blood tests may help identify other causes, while brain scans may help investigate changes or rule out other conditions. In some cases, specialist tests look for biological signs of Alzheimer’s disease.
The physician considers these findings together to establish a diagnosis.
Access to care and treatment
An early diagnosis allows people to discuss suitable treatments and symptom management with their doctor. Some treatments are intended for the early stages of Alzheimer’s, so seeking advice promptly may help identify suitable options.
More time to make decisions
Understanding the condition earlier gives the person more opportunity to express their wishes and to participate in decisions about care, living arrangements and finances. Families can also discuss support at home and driving safety.
Support for the person and their family
A diagnosis can help explain worrying changes and connect families with reliable information, support groups and services for everyday life.
Changes that persist, become more frequent or affect everyday activities deserve attention. Examples include:
- Repeatedly forgetting recent conversations or events.
- Finding familiar tasks, such as preparing meals or managing bills, increasingly difficult.
- Getting lost in familiar places or becoming confused about time.
- Struggling to find words or follow conversations.
- Noticeable changes in mood, judgement or interest in social activities.
These signs do not confirm Alzheimer’s disease, but they are reasons to seek medical advice.
For anyone noticing these changes, a conversation with a physician can help clarify concerns. Writing down examples, noting when they began and how they affect daily life can help prepare for the consultation. Bringing a list of current medicines and supplements is also helpful.
A trusted family member or friend can offer support and help paint a fuller picture.
Seeking advice can help people and their families understand these changes and explore the support available to them.
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References: 1. Diagnosing Alzheimer’s disease. Mayo Foundation for Medical Education and Research (MFMER) USA, 2026. 2. Medical Tests for Diagnosing Alzheimer’s. Alzheimer’s Association USA, 2026. 3. Why Get Checked? Alzheimer’s Association USA, 2026. 4. Interview script written by Moleac: “How Alzheimer’s Is Diagnosed Today”. 2026
This document does not constitute the practice of medical consultation nor medical advice. Always seek the advice of your treating physician and/or specialist.
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