Quels sont les signes de la déshydratation chez une personne âgée ?

What are the signs of dehydration in an elderly person?

As we age, the risk of dehydration increases, and its consequences can be serious. So how can we identify the signs of dehydration in seniors , and more importantly, how can we help them stay well hydrated ?

Recognizing the signs of dehydration in the elderly

Dehydration in older adults isn't always obvious. Here are some signs to watch for:

A dry or sticky mouth can be an early sign of dehydration. This happens when your salivary glands aren't producing enough saliva. In addition to the dry feeling, dry mouth can be accompanied by cracked lips, a rough tongue, and difficulty chewing, swallowing, or speaking.

Dark urine or reduced frequency of urination can be warning signs. The darker the urine, the more it can mean that the body is deprived of water. This is because dark urine is generally more concentrated . This means that there is less water to dilute the waste products that the body eliminates, such as urea and creatinine. A high concentration of these waste products gives the urine a darker color. In addition to the color, the volume of urine can also be reduced when dehydration occurs. Less water in the body means that less urine is produced.

When the body is dehydrated, it lacks the water needed to keep the skin hydrated. This can make the skin dry, less elastic , and more prone to irritation and cracking . A simple test to perform is the skin pinch test: when the skin is lightly pinched and it does not return to its original shape quickly, this can indicate dehydration. In older people, however, this test can be less reliable due to the natural loss of skin elasticity with age.

Changes in energy levels or mental clarity are worth your attention. When the body is dehydrated, it lacks the water it needs to function efficiently. This can lead to an overall drop in energy levels as the body has to work harder to maintain vital functions. Water plays a vital role in muscle and joint health. Dehydration can lead to muscle and joint pain, which can increase feelings of fatigue.

Dizziness and headaches can also be signs of dehydration. This is because dehydration causes a reduction in blood volume. This means there is less blood available to circulate around the body, which can lower blood pressure and reduce blood flow to the brain, causing dizziness.

Additionally, water is essential for maintaining electrolyte balance in the body.

Dehydration can then disrupt this balance, particularly sodium and potassium levels, which can affect nerve and muscle function, and cause dizziness .

Common Causes of Dehydration

Why are seniors more likely to become dehydrated? Several factors come into play:

Older adults experience less thirst , a natural alarm signal that diminishes with age. The body undergoes natural changes that can affect the perception of thirst. Kidney function tends to decline with age. The kidneys play a crucial role in the body's fluid and electrolyte balance . With reduced kidney function, the ability to concentrate urine and conserve water decreases, which can impair the thirst response. Thirst-sensing mechanisms in the brain, particularly in the hypothalamus, may also become less sensitive with age. This means that older adults may not feel thirst even when their bodies need hydration .

Certain medications and health conditions can increase the risk of dehydration . Chronic medical conditions, such as diabetes and some types of neurological dysfunction, can also affect the sensation of thirst. For example, cognitive disorders, such as Alzheimer's disease and other forms of dementia, can interfere with the recognition of thirst or the ability to communicate the need to drink.

Mobility or cognitive issues can make accessing water more difficult. These can limit fluid intake, regardless of feeling thirsty. This is especially true for older adults who require assistance with drinking.

Prevention strategies

Prevention is better than cure, especially when it comes to hydration:

- So encourage older adults to drink fluids throughout the day , not just when they are thirsty. Other fluids such as soups, herbal teas, and fruit juices can also be included. One effective method is to establish a hydration routine.

- Ensure adequate fluid and electrolyte intake on a daily basis. Dehydration can lead to a significant loss of electrolytes, and electrolytes, such as sodium, potassium, and chlorine, are essential for many bodily functions. The Hydratis solution helps replenish these lost electrolytes.

- Make sure water is easily accessible. For example, keep a jug of water nearby, use cups or bottles that are easy to hold, and open. Also remember to make sure older adults can easily access the toilet when they increase their fluid intake.

- Educate older adults about the importance of hydration, as well as caregivers and caregivers. Indeed, it is essential that they can recognize the signs of dehydration so that they can act quickly and at the first symptoms.

What to do in case of dehydration?

If you suspect dehydration in a senior, act quickly: Start with small amounts of water or rehydration solutions such as Hydratis.

Avoid alcohol and caffeine, as they can worsen dehydration. Fruits like watermelon, oranges, or grapes, as well as vegetables like cucumbers or celery, can help with hydration.

If symptoms are severe, the person is unable to drink, or is vomiting, seek medical attention immediately . Dehydration in older adults may require intravenous hydration or medical treatment.

Keep an eye on how things are going. Monitor frequency and amount of urination to assess whether hydration is improving.

Understanding and preventing dehydration in older adults is a crucial aspect of their well-being. At Hydratis , we firmly believe in the importance of hydration to maintain optimal health at any age. By paying attention to the signs and adopting good practices, we can all contribute to improving the quality of life of our elders and taking care of our loved ones.

Bibliography:

Improved. December 6, 2023. Dehydration - https://www.ameli.fr/lille-douai/assure/sante/urgence/pathologies/deshydratation

Ministry of Health and Prevention. (nd). Preventing health risks in the elderly - https://sante.gouv.fr/IMG/pdf/Reperes_Canicule_v5_bd.pdf

Amelis Institute. September 2, 2022. Dehydration in the elderly: risks and prevention advice - https://institut.amelis-services.com/sante/nutrition/attention-a-la-deshydratation-letearrive/

Science Direct. July 2016. “Water-loss (intracellular) dehydration assessed using urinary tests: how well do they work? Diagnostic accuracy in older people. » - https://www.sciencedirect.com/science/article/pii/S0002916522045178

Science Direct. March 2014. “Water-loss dehydration and aging”. - https://www.sciencedirect.com/science/article/abs/pii/S0047637413001280

National information portal for the elderly. July 17, 2023 - https://www.pour-les-personnes-agees.gouv.fr/preserver-son-autonomie-s-informeret-anticiper/preserver-son-autonomie-et-sa-sante/deshydration-prevention-tips-in-forecast-of-high-temperature

PubMed. September 2001. “Influence of age on thirst and fluid intake” - https://pubmed.ncbi.nlm.nih.gov/11528342/#:~:text=Recent%20evidence%20suggest s%20that%20older,)%20and %20loading%20(hypervolemia)%20of

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