Urine infections can be more common in older adults and often cause different symptoms than in younger adults, making them difficult to spot and treat quickly. Symptoms of a urinary tract infection (UTI) may be mistaken for normal ageing or dementia.
Early identification of urinary tract infections is essential to reduce the risk of serious complications. Today, we’ll explore how urine infections can cause confusion and other concerning symptoms.
What Is a Urine Infection?
A urine infection is one that affects any part of the urinary tract, including the bladder, uterus, kidneys and urethra. Older adults most commonly experience cystitis, a UTI of the bladder.
Urine infections usually start to feel better within 24 to 48 hours of starting antibiotics, although symptoms may resolve on their own within a week. When this type of infection is left untreated, it can progress to kidney infections.
Common UTI Signs and Symptoms in Older Adults
Older adults may not experience the classic symptoms of a urine infection that younger adults experience, such as uncomfortable urination or back pain. Their symptoms may be behavioural instead.
Common UTI signs in older adults may include:
- Sudden confusion
- New or worsening changes in behaviour, such as agitation
- Incontinence, which can stem from a frequent or urgent need to urinate
- Fever and shivering
- Lower pain in the abdomen, back or pelvis
- Loss of appetite and weakness
- Fatigue
- General decline
These symptoms can develop quickly and require medical help as soon as you spot them. They may be confused with signs of another condition, such as dementia or Alzheimer’s disease, due to similar symptoms.
Can Urinary Tract Infections Cause Sudden Confusion in the Elderly?
Sudden confusion and cognitive impairment can be linked to urine infections in older people. It may appear alongside other symptoms, such as changes in behaviour, or it may be a person’s only symptom.
When left untreated, confusion caused by a UTI can trigger delirium, which is a serious and sudden change in mental state.
Symptoms of delirium can include:
- Difficulty concentration
- Increased agitation or restlessness
- Hallucinations or paranoia
- Withdrawal or unusual drowsiness
Older people living with dementia are more vulnerable to developing delirium. Other risk factors include a weakened immune system, dehydration and prior kidney damage.
It’s important to note that confusion alone is not sufficient to diagnose a urinary tract infection in older adults, as other conditions may be causing it. A urine sample and a medical assessment will be required to confirm the cause.
What Is Delirium?
Delirium is a change in a person’s mental state that appears quickly over a few days. It can be very worrying for family and friends, especially if their loved one is suddenly acting very differently or erratically.
There are three main types of delirium that may be triggered by a urinary tract infection:
Hyperactive Delirium
Hyperactive delirium can cause symptoms such as:
- Restlessness or agitation, such as pacing or the inability to remain still
- Resistance or aggressive behaviour towards personal care
- Confusion about who they are
- Suddenly feeling wary of other people
- Delusions, such as thinking people are trying to harm them
- Hallucinations, such as seeing or hearing things that aren’t there
Hypoactive Delirium
A person with hypoactive delirium may display symptoms such as:
- Withdrawn, sluggish or tired behaviour
- Reduced mobility
- Fewer interactions with people around them
- Feeling unusually sleepy
- Struggle to stay focused when they’re awake
- Reduced appetite or drinking less
Hypoactive delirium is often missed or explained away as a person being sleepy. This can make early detection difficult, leading to worsening symptoms before the UTI can be treated.
Mixed Delirium
Older people with mixed delirium may show signs of both hyperactive and hypoactive delirium. They can switch between symptoms throughout the day, making it difficult to diagnose what’s wrong. For example, they may be extremely agitated one day, then very tired and lethargic the next.
When Should You Seek Medical Advice?
You should contact your loved one’s GP or urgent care services if they begin experiencing:
- Sudden confusion or reduced alertness
- Fever, chills or pain when urinating
- Blood in urine
- Signs of dehydration, such as a dry mouth or less frequent bathroom breaks
- Reduced fluid intake and appetite
Untreated UTIs can lead to serious complications, such as kidney infections and sepsis. This is especially true in frail older adults, so people affected should speak to a doctor as soon as possible to receive a timely diagnosis.
Can UTIs Cause Frailty in Older Adults?
There is a strong link between urinary infections and frailty in older adults. UTIs can often trigger rapid declines in physical and cognitive function, causing delirium, increased falls, and reduced mobility. These can accelerate frailty progression and increase the risk of frequent hospitalisation.
Frailty affects 10% of those over 65 and 50% of those over 85, according to the National Institute for Health and Care Research. Frail individuals are more at risk of developing UTIs due to factors like mobility issues and dehydration. The infection often worsens frailty symptoms, increasing the individual’s risk of subsequent UTIs. This can become a vicious cycle.
Why Are UTIs More Common in Older Adults?
UTIs are among the most common infections in the elderly. Older people are more vulnerable to UTIs because of a combination of physical, lifestyle, and medical factors.
Common risk factors may include:
- Weakened immune system: This can reduce the body’s ability to fight infection.
- Use of catheters: Prolonged or repeated use can significantly increase the risk of infection.
- Incomplete bladder emptying: Enlarged prostates or weakened pelvic floors can cause this, increasing the risk of infection.
- Reduced fluid intake: Older adults may fear becoming incontinent, which can make them drink less fluid and become dehydrated.
- Mobility issues: Older adults may find it harder to maintain good hygiene, increasing the risk of UTI.
- Underlying health conditions: Diabetes, dementia and neurological conditions can all increase the risk of developing a urine infection.
Will Confusion Go Away with UTI Treatment?
Confusion triggered by a UTI will often go away after the infection has been treated by a doctor prescribing antibiotics. However, the duration of confusion may differ from person to person depending on their health.
For example:
- Confusion from mild UTIs usually improves within 24 to 48 hours after antibiotics, with full recovery in 3 to 5 days.
- Severe or complicated UTIs may prolong confusion for up to 1 to 3 weeks, especially if the infection spreads to the kidneys or involves catheter use.
- Older adults with cognitive impairments may not fully recover for several weeks to months, and may not fully regain their baseline mental clarity.
- For individuals experiencing recurrent UTIs, symptoms may fluctuate for weeks to months.
- Recovery may take longer if antibiotic resistance or delayed treatment occurs.
How Country Cousins Can Help
Hearing about the increased risk of infection, delirium and frailty an older loved one can experience may be distressing to family and friends, but a compassionate live-in carer can help. Our fully trained, experienced carers are on hand to support your loved one throughout treatment and future management to help prevent repeat infections.
Here’s how a live-in carer from Country Cousins can help:
- Daily assistance with routines, such as cooking and bathing
- Symptom monitoring for early detection of confusion, delirium or UTIs
- Gentle reminders to take medication and drink water
- Mobility support around the home
- Emergency assistance
- Transportation to and from appointments
- Companionship and emotional support
Talk to Our Team Today
As the UK’s longest-serving introductory live-in care agency, we have been providing compassionate live-in care to those who need it since 1959 – all from the comfort of their own homes.
Give us a call today on 01293 224 706. Our experienced team is on hand to help from Monday to Friday, 9 am to 6 pm. Alternatively, contact us through our online enquiry form.
