Sudden confusion over hours or days needs urgent medical assessment. Do not assume it is ageing, dementia or a urine infection. If the person is newly confused, call 999 or seek emergency care, particularly if they are very drowsy, have new weakness, breathing difficulty or signs of serious illness. A planned home visit or a WhatsApp reply is not the first step for acute confusion.
Prepared by The Wellness Team. Evidence checked 2 November 2026.
Ask about a planned individual assessment. This messaging route is not an emergency service.
How is delirium different from dementia?
Delirium is an acute change in attention, awareness or thinking that may fluctuate. Someone can seem clearer at one point and much more muddled later. Dementia usually develops more gradually, but a person with dementia can also develop delirium. Knowing what is different from their usual behaviour matters more than attaching a label at home. New withdrawal, reduced movement or unusual sleepiness can be important, even without agitation.
What might be causing the change?
Possible contributors include acute illness, dehydration, medicines, pain and several problems occurring together. A clinician needs to look for the cause rather than prescribe for an assumed diagnosis. Bring information about recent fever, eating and drinking, bowel and bladder changes, falls and new treatments. A home urine dip or an old antibiotic prescription cannot establish the explanation for a sudden change in thinking.
What can the family do while help is arranged?
Stay with the person if it is safe, speak calmly and explain who you are and where they are. Make glasses and hearing aids available. Avoid arguing with confused beliefs or overwhelming them with repeated questions. Do not force food, drink or tablets into the mouth of someone too drowsy to swallow safely. Tell emergency staff if the person has fallen, may have taken an incorrect dose or has a new neurological symptom.
Discuss the right appointment after urgent concerns have been addressed. Suitability, location, timing and the complete fee are confirmed individually.
Which information is most useful to the clinician?
Write down when they were last their usual self and how the change developed. Describe their normal memory, independence and communication. Have medicine packets or a current list available, including sleeping tablets, pain medicines and recent dose changes. Explain any alcohol use, recent hospital stay and known dementia. One relative who knows the baseline can provide more useful information than a long list of guesses about the cause.
Does every confused person need the same tests?
No. Assessment is guided by the history, examination and severity. NICE recommends appropriate assessment and identification of underlying causes; a recognised tool such as the 4AT may support professional assessment. Its delirium guidance is primarily for hospital and long-term care, not a self-diagnosis checklist for families. Tests should be selected for the clinical situation. A reassuring result from one test does not automatically explain the change.
When is a planned home review useful?
After urgent assessment, follow-up can help with medicine reconciliation, recovery, support and communication between services. Ask for a written explanation of what was found, what remains uncertain and what should trigger urgent reassessment. A family may need help understanding whether the person is returning to baseline. Book the appropriate review rather than assuming all persistent changes are permanent or that one visit settles every concern.
What does a well-planned private assessment add?
The useful outcome is a clear explanation of the concern, an appropriate examination and a plan that makes the next step easier. When a person needs help at home, the assessment can also consider medicines, mobility, support and the practicalities of following the advice. A private appointment should complement appropriate urgent care, never delay it. Tests and specialist review should answer a clinical question rather than be added automatically.
For published London market context, consultant geriatrician Dr Pandora Wright lists a home Comprehensive Geriatric Assessment at £685. That is a specialist service with its own scope, not a like-for-like GP visit or The Wellness tariff. Ask which professional would attend, what preparation is needed, what written information follows and which investigations or follow-up would be separate. The complete service matters alongside the headline fee. A GP assessment does not mean a consultant geriatrician is attending.
How should family members prepare?
Agree what the patient wants help with and what information may be shared. Have the current medicine list, recent discharge letters and the usual level of function available. Explain access needs, hearing or language support and whether someone can remain with the person. Use the team's appropriate secure route for detailed records rather than sending a complete medical history in an informal enquiry. Availability and the suitable location must be confirmed, not assumed from an article.
Request a suitable assessment and a clear individual plan. If symptoms are urgent, use the urgent route described above rather than waiting for a reply.
Sources and limits
This is general information, not a diagnosis or individual treatment advice. Evidence and guidance apply to the populations described; they do not promise a result for an individual. No appointment, investigation or procedure is confirmed by submitting an enquiry.