Recognizing the Signs of Dehydration in Elderly Adults

A recent emergency room survey found that 68% of all visits came from seniors 75 years and older. While many health issues can appear in this age group, one big problem is dehydration. Seniors may not eat and drink as much, and severe dehydration can set in quickly. Fortunately, there are ways to prevent dehydration and correct it when it’s caught early.

Key Takeaways: Signs of Dehydration in Seniors

• Dehydration is a major health risk for seniors, often leading to emergency room visits and severe complications.
• Early signs include fatigue, dizziness, headaches, confusion, and symptoms that may mimic dementia.
• Aging increases dehydration risks due to a reduced thirst response, kidney inefficiencies, and fluid loss through medical conditions.
• Preventive strategies include scheduling fluid intake, sipping water throughout the day, and monitoring for signs like dark urine and dry skin.
• Hydration is essential for heart, kidney, and brain health, making early detection and consistent fluid intake critical for senior well-being.

Recognizing the signs of dehydration in elderly adults is crucial, as it can lead to serious health issues. Dehydration symptoms can include urinary tract infections and confusion, and can even mimic dementia symptoms. Drinking fluids is essential, especially for seniors with kidney disease and those on certain blood pressure medications.

In communities with an older population, dehydration was either a primary or secondary reason for most of the emergency room visits. The Nutrition Information Center in New York found that 75% of all Americans have chronic dehydration. Our bodies contain up to 70% water, and fluids are the basis for most bodily functions. Water flushes harmful toxins from the body, and we can only survive three to four days without water.

If you’re caring for elderly patients or have loved ones who are elderly, watching out for moderate dehydration, a low water intake, or lost fluids through sickness is essential. You’ll want to treat dehydration, replace lost fluids, and pay attention to blood pressure readings in order to make sure an elderly person is getting the support they need.

An Often Overlooked Health Risk

It’s all too easy for dehydration in the elderly to lead to serious complications. Low blood pressure requiring medical attention is common, but other symptoms of dehydration can also appear quickly. In some cases, these symptoms can be very dangerous and lead to other health conditions, so catching them as early as possible matters.

In most cases, you can prevent dehydration in the elderly by limiting heat exposure and ensuring good fluid intake. You can also limit alcohol to help reduce dehydration, headache symptoms, and related issues. However, adjusting fluid intake isn’t the only way to address risk.

Sometimes, an elderly person who experiences diarrhea and vomiting can also become dehydrated. While the focus should be on stopping the problems and helping your loved one or the person in your care feel better, you also want to watch for symptoms of dehydration that can come from dealing with sickness and a lack of fluids.

Common Causes of Dehydration in Older Adults

Thirst is a feeling of needing or wanting to drink something. For most people, the feeling prompts the intake of fluids that stop the feeling. Excessive thirst or thirst that can’t be quenched can be symptoms of severe medical conditions like diabetes, sepsis, or heart, liver, or kidney failure.

If your elderly loved one is thirsty all the time, it could be a sign of urinary and kidney problems or other medical conditions that keep them dehydrated despite increased fluid intake. 

The body loses water naturally over the course of the day through urination and sweating, but staying hydrated can be more difficult for someone with medical issues. They may need to focus on drinking water more often than someone younger or healthier.

Dehydration can be caused by profuse sweating, too much urine output, diarrhea, or vomiting. When the body lacks fluids, dehydration can prevent many body parts from functioning properly, resulting in UTIs, worsening kidney disease, and the exacerbation of chronic illnesses. Low blood volume can also result from dehydration.

Between 60% and 70% of fluids are in our cells, so muscles have a large share of bodily water. We need the minerals, sodium, and potassium in natural water to keep organs functioning properly. Three things occur as we get older that complicate this process.

First, thirst is blunted with age, so we become dehydrated before the feeling of thirst. Second, kidneys become less effective at concentrating the urine, so more water is excreted than when we were younger. Third, there is a noticeable increase in the need to urinate and a conscious reduction in intake to offset it.

All three of these issues can come together to make underlying health conditions worse, cause kidney stones, and contribute to dry mouth, muscle weakness, and more. 

Seniors who end up chronically dehydrated may develop dark urine, bloody or black stool, and require IV fluids and immediate medical attention. The goal is to catch the signs of dehydration early before the problem becomes more serious.

Early Signs of Dehydration in Elderly People

Early signs like fatigue, depression, headache, constipation, dizziness, and muscle cramps are often attributed to other medical conditions. Because of that, dehydration in seniors can be overlooked for a long time. The senior may feel they drink plenty of liquids but not realize how much volume depletion happens over time.

Another concern is that the American Heart Association says hydration is good for the heart, but cardiologists often put patients on fluid restrictions to prevent excess wear on cardiac conditions. 

Patients who follow the hydration limits may not follow the minimum intake directions, so they won’t replenish electrolytes or adequately regulate body temperature through fluid intake.

Since 85% of the brain is fluid, it’s not uncommon for dehydrated patients to exhibit dementia symptoms. Dementia is a serious condition, and it’s vital to ensure that there isn’t a more straightforward explanation for forgetfulness, agitation, and other symptoms. 

Finding the cause of the problem is the first step toward treating it, and focusing on a way to replace fluids is a good first step.

How to Prevent Dehydration in Older Adults

In many cases, dehydration in seniors can be prevented. Outside of a heat injury or excessive sweating that causes temporary dehydration, the focus should be on addressing underlying health conditions and encouraging fluid intake, even if the patient doesn’t feel thirsty.

We suggest the following strategy for everyone aged 75 and older. While this is more easily implemented in a senior living community, it can also be handled through at-home attention and caregiving.

Step One

SCHEDULE fluid intake with a charting methodology to capture daily intake. In other words, make sure fruit juice, water, or other fluids are being consumed even if thirst isn’t present. 

When a set amount of fluid is consumed at scheduled times, the risk of dehydration drops significantly. It’s important to note that the focus should be on water due to its health benefits, but other fluids can also be added for taste and convenience.

Step Two

SIP rather than try to drink an entire glass at one time. Fruit can be used to infuse water for taste, but soft drinks or other beverages should not replace water, as the minerals are crucial. Drinking a large volume of liquid in a short time isn’t necessary or recommended, as sipping can help encourage fluid consumption over the day and improve the overall level of hydration.

Tip: Use two fingers to gently pinch some skin on your hand, then let the skin go. Suppose it doesn’t spring back to its normal position in a couple of seconds, SIP. Skin is typically very elastic, even in elderly people. If you’re not drinking enough water, you can lose that elasticity, and your skin won’t “snap back.”

From dry mouth to involuntary muscle contractions, dehydration in seniors can cause serious consequences. The best way to treat it is to catch an early symptom before it becomes a medical emergency. 

If you notice a loved one or patient experiencing dark-colored urine or fluid loss through illness, especially in hot weather, it’s crucial to get them drinking water and staying hydrated to help with their overall health.

About CarePatrol

CarePatrol started in 1993 with a mission to ensure that families and their older loved ones receive the senior care they need. Our Local Senior Care Advisors at CarePatrol can help you every step of the way. They have the knowledge to guide you on the types of care that are available and which one would best suit your current situation and future needs. 

CarePatrol Local Senior Care Advisors are aptly positioned to help families in this unfamiliar and overwhelming arena of caring for aging adults and finding the safest care options for their loved ones. If your loved one requires additional care support at home or needs to transition into a care community, our senior care advisors can assist you. Contact CarePatrol today, we’ll be your trusted guide during this life transition and help you make the best decision for your loved one.