Preventive Care
What A Geriatric Assessment Covers And Why It Exists
A comprehensive geriatric assessment looks at function, cognition, medication and social circumstances together, because single-organ consultations miss the interactions that determine outcomes.

A comprehensive geriatric assessment is a structured review that covers several domains at once. It exists because problems in later life interact, and single-specialty consultations examine them separately.
The problem it was designed to solve
Medical care is organised by organ system. A cardiology clinic examines the heart, a rheumatology clinic the joints, and each produces recommendations within its own boundary.
In an older adult with several conditions, the recommendations can conflict. A drug that helps one problem worsens another, and no single clinic holds the whole picture.
Assessment was developed to sit above that structure. It asks what the person can do, what limits them, and which of the competing problems most affects daily life.
The domains it covers
Physical function is examined first: mobility, balance, transfers, and the activities of daily living such as dressing, bathing and managing stairs.
Cognition and mood are assessed with brief structured tools, alongside sensory function, since hearing and vision loss change both test performance and independence.
Medication review, nutrition, continence, and social circumstances complete the picture. Housing, finances and available support are treated as clinical information, not background detail.
Why the medication component carries weight
Many older adults take several long-term drugs, each started for a sound reason at a different time by a different prescriber. Nobody reviews the combination.
Assessment provides an occasion to ask whether each drug still serves its original purpose, whether the original condition has changed, and whether side effects now outweigh benefit.
Some drugs also mimic ageing. Sedation, unsteadiness and confusion can be pharmacological rather than intrinsic, and that is only visible when the whole list is examined together.
What comes out of it
The output is a problem list ordered by impact on function, with a plan attached. It is not a diagnosis in the conventional sense.
Plans typically combine medical changes with practical ones: a medication adjustment, a strength and balance referral, an equipment assessment, or a change to how support is arranged.
Because the plan crosses professional boundaries, it usually involves several disciplines, which is why assessment is described as multidisciplinary rather than as a doctor's consultation.
When it tends to be offered
Access varies considerably between health systems and regions. It is most commonly triggered by a hospital admission, a fall, a period of rapid decline or a request from family.
It is offered far less often to people who are managing but slipping gradually, which is arguably where a structured review would change most.
Asking whether a comprehensive assessment is available locally is reasonable, though whether it is appropriate and what it includes is a decision for the clinical team involved.
Also by Dr. Helen Marsh
- What actually protects memory: separating the evidence from the marketingBrain & Memory
- Blood pressure targets at 70 are not the same as at 45Heart & Metabolic
- Deprescribing: the medication review almost nobody is offeredPreventive Care
- Loneliness is a health risk. What the research actually showsLiving Well





