Dehydration in older adults: spotting changes and sharing observations

An almost full bottle at the end of a visit can alert, but it is not enough to diagnose dehydration. The goal of the relatives is to spot a change, to ask for a medical opinion and to send useful observations to the person who will take over.

What signs should attract attention?

According to Sickness Insurance, older people sometimes feel little thirst. Unusual tiredness, loss of appetite, drowsiness or behavioural change can accompany dehydration. Less abundant urine and dry mouth are also signs to report. These manifestations may have other causes: a professional must assess the situation.

In the event of significant confusion, malaise, consciousness disorder or rapid degradation, call 15 or 112. Describe the symptoms, their time of onset and known treatments. Follow the instructions given; a note in an application does not replace this call.

Organize visits without improvising treatment

Ask the doctor or nurse what instructions to apply, especially if the relative has a water restriction or difficulty swallowing. Do not set a universal volume to drink and do not modify a treatment on your own initiative.

For the relay between relatives, prepare a simple file: which passes today, which can call the doctor and where to find up-to-date instructions. If more than one person intervenes, designate a contact to centralize the answers of the professional. This avoids conflicting calls and decisions taken separately.

What should be noted in the care journal?

• Time of visit and observed changes from usual.
• What the person says about his condition, with his own words.
• The proposed drinks and the quantities actually known, without an estimate presented as a measure.
• The professional contacted, time of call and instructions received.
• The person responsible for the next passage or recall.

Example of a handover note: “At 11:00, more tired than during yesterday’s visit. Drank some of the offered water; quantity not measured. Doctor called at 11:15, awaiting a callback. Sophie remains on site.” This note records facts and actions without making a diagnosis.

Preparing the next relay

The member taking over must be able to find the last transmission and reach the person present. digital care journal andshared calendar may collect such information. Their usefulness remains the organization: medical follow-up is the responsibility of professionals.

Official source

Sickness insurance: dehydration, signs and behaviour. Source consulted on October 10, 2026. This fact sheet informs caregivers and does not replace a consultation.