Description

Delirium is a serious change in mental abilities. It is confusing thought and the lack of awareness of someone's environment. The disorder is usually quick in a matter of hours or a few days.

Delirium can often be traced to one or more factors. The factors may include a severe or long-lasting illness or an imbalance in the body, such as low content of sodium. The disorder can also be caused by certain medications, infection, surgery, or alcohol or drug use or withdrawal.

The symptoms of delirium are sometimes confused with symptoms of dementia. Health care providers can rely on the input of a family member or caregiver to diagnose the disorder.

Symptoms

The symptoms of delirium usually begin within a couple of hours or a couple of days. Normally it is presented with a health problem. The symptoms may appear and disappear during the day. There may be periods without symptoms. The symptoms tend to get worse at night when it is dark and things look less familiar. They also tend to be worse in the configuration that are not familiar, as in a hospital.

Main symptoms are the following.

Reduction of the awareness of surroundings

This can result in:

  • Problems to focus on a theme or topic change
  • Stuck on an idea, instead of responding to the questions
  • Is easily distracted
  • Being removed from the market, with little or no activity or little response to the surrounding area

Poor thinking skills

This may appear as:

  • The bad memory, such as forgetting recent events
  • Not knowing where they are or who they are
  • Problems with speech or recalling the words
  • Hiking or nonsense voice
  • Difficulty in understanding the language
  • Reading or writing problems

The behavioral and emotional changes

These may include:

  • The anxiety, fear or distrust of others
  • Depression
  • A genius or anger
  • A feeling of being euphoric
  • The lack of interest and excitement
  • The rapid changes in the mood
  • Changes in personality
  • See things that others do not see
  • Be restless, anxious, or combative
  • Calling, whining, or making other sounds
  • Be quiet and withdrawn — especially in older adults
  • Slow movement or slow
  • Changes in sleep habits
  • A switching of the night-day of the sleep-wake cycle

Types of delirium

Experts have identified three types:

  • Hyperactive delirium. This may be the easiest type to recognize. People with this type can be restless, and the rhythm of the room. It can also be anxiety, have rapid mood changes, or see things that do not exist. People with this type often resist the attention.
  • The delirium, hypoactive. People with this type may be inactive or have reduced activity. They tend to be slow or sleep. It may have seemed a dream. Do not interact with the family or with others.
  • Mixed delirium. Symptoms include both types of delirium. The person can quickly switch back and forth from being restless and slow.

Delirium and dementia

Delirium and dementia can be hard to tell apart, and a person may have both. Someone with dementia has a gradual deterioration of memory and other thinking skills, due to damage or loss of brain cells. The most common cause of dementia is Alzheimer's disease, which comes on slowly over months or years.

Delirium often occurs in individuals with dementia. However, the episodes of delirium does not always mean that the person has dementia. Tests for dementia should not be done during an episode of delirium, because the results can be misleading.

Some of the differences between the symptoms of delirium and dementia include:

  • Start. The onset of delirium occurs within a short period of time — within a day or two. Dementia usually begins with minor symptoms that worsen over time.
  • Attention. The ability to stay focused or to keep the focus deteriorates with delirium. A person in the early stages of dementia continues to be generally alert. Someone with dementia is often not slow or agitated.
  • The rapid changes in the symptoms. Delirium symptoms may come and go several times during the day. While people with dementia have the best and the worst moments of the day, their memory and thinking skills often remain at a constant level.

When to see a doctor

If a relative, friend or someone in your care shows symptoms of delirium, talk with the person's health care provider. Your input on the symptoms, the typical thinking and common skills will be important for the diagnosis. You can also help your doctor find the cause of the disease.

If you notice symptoms of someone in the hospital or nursing home, report your concerns to the nurse or health care professional. Symptoms have not been observed. Older people who are in the hospital or living in a long-term care facility is at risk of delirium.

Causes

Delirium occurs when the signals in the brain are not sent and received correctly.

The disorder can have a single cause or more than one cause. For example, a medical condition combined with the side effects of a drug can cause delirium. Sometimes no cause can be found. Possible causes include:

  • Certain medications or side effects of the medicine
  • Use of Alcohol or drugs, or withdrawal
  • A medical condition, such as stroke, heart attack, worsening of lung or liver disease, or an injury from a fall
  • An imbalance in the body, such as low-sodium or low calcium
  • Severe, long-term illness or a disease that will lead to death
  • A fever and a new infection, especially in children
  • Urinary tract infection, pneumonia, the flu or COVID-19 , especially in older adults
  • The exposure to a toxin, such as carbon monoxide, cyanide and other poisons
  • Poor nutrition or a loss of too much body fluid
  • The lack of sleep or severe emotional distress
  • The pain
  • Surgery or other medical procedure that requires you to put in a sleep-like state

Some medications taken alone or in combination, can cause delirium. These include medicines to treat:

  • The pain
  • Sleep problems
  • Mood disorders, such as anxiety and depression
  • Allergies
  • Asthma
  • Swelling
  • Parkinson's disease
  • Spasms or convulsions

Risk factors

Any condition that results in a hospital stay increases the risk of delirium. This is especially true when someone is recovering from a surgery or in intensive care. Delirium is more common in older adults and in people who live in nursing homes.

Other examples of conditions that may increase the risk of delirium include:

  • Brain disorders such as dementia, stroke or Parkinson's disease
  • Latest episodes of delirium
  • Vision or hearing loss
  • Multiple medical problems

Complications

Delirium can last only for a few hours or several weeks or months. If the causes are treated, the recovery time is often shorter.

The recovery depends to some extent on the health and mental state before the start of the symptoms. People with dementia, for example, may experience a general decline in memory and thinking abilities after an episode of delirium. People in better health are more likely to recover completely.

Other people with serious, long-term or terminal illness can't recover the thinking skills or the function that they had before the onset of delirium. Delirium in the seriously ill is more likely to lead to:

  • A general decline in health
  • Low recovery from surgery
  • The need for long-term care
  • An increase in the risk of death

Prevention

The best way to prevent delirium is to target the risk factors that may trigger an episode. Hospitals present a special challenge. Hospital stays are often imply changes in the cell, invasive procedures, noise and poor lighting. The lack of natural light and lack of sleep can worsen the confusion.

Some steps can help to prevent or reduce the severity of delirium. To do this, promote good sleep habits, it helps the person to remain calm and focused, and help prevent medical problems or other complications. Also, avoid drugs that are used for sleeping, such as diphenhydramine (Benadryl Allergy, Unisom, other).

Diagnosis

A health care provider can diagnose delirium based on the clinical history and tests of mental state. The provider will also consider the factors that may have caused the disorder. An examination may include:

  • History of medicine. The doctor will ask you what has changed in the last few days. There is a new infection? Did the person starting a new medication? There was an injury or pain, such as pain in the chest? Do you headaches or weakness occur? Does the person use of alcohol or a drug legal or illegal?
  • The Mental state of revision. The vendor is started by the test of conscience, attention and thought. This can be done by talking with the person. Or you can do it with the tests or exams. Information of family members or caregivers can be of help.
  • Physical and neurological examinations. A physical examination of the checks for signs of health problems or disease. A neurological examination examination of the eye, balance, coordination, and reflexes. This can help you determine if a stroke or other illness that is causing the delirium.
  • Other tests. The doctor may order blood, urine, and other tests. Brain-imaging tests can be used when the diagnosis cannot be done with other type of information.

Treatment

The first goal of delirium treatment is to address the causes or triggers. Which may include the suspension of certain medications, the treatment of an infection or the treatment of an imbalance in the body. Treatment then focuses on the creation of the best configuration for healing the body and calming the brain.

Supportive care

Supportive care aims to prevent complications. Here are the steps to follow:

  • To protect the airway.
  • Provide fluids and nutrition
  • Help with the move
  • The treatment of pain
  • The address of a lack of bladder control
  • Avoid the use of physical restraints and the bladder tubes
  • Avoid changes in the environment and to the caregivers when possible
  • Include family members or people known in the attention

Drugs

If you are a family member or caregiver of someone who has delirium, talk with your doctor about medications that may trigger symptoms. The doctor may suggest that the person avoid taking medicines or that a lower dose is given. Certain medications may be needed to control the pain that is causing the delirium.

Other types of medications can help to calm a person who is agitated or confused. Or the drug may be necessary if the person is showing distrust of others, is afraid or is seeing things that others do not see. These drugs may be required when the symptoms:

  • Make it difficult to conduct a medical examination or provide treatment
  • Put the person in danger or endangering the safety of others
  • It does not diminish with other treatments

When the symptoms resolve, the drugs tend to be arrested or given at low doses.

Coping and support

If you are a family member or caregiver of someone who is at risk of delirium, you can take steps to prevent an episode. If you take care of someone who is recovering from delirium, these steps may help to improve the health of the person and prevent another episode.

To promote good sleep habits

To promote good sleep habits:

  • Provide a quiet environment, quiet
  • The use of lighting an interior that reflects the time of the day
  • Help the person to maintain a regular daytime hours
  • Encourage self-care and activity during the day
  • Allow to rest and sleep at night

Promote calm and orientation

To help the person to remain calm and aware of your surroundings:

  • Provide a clock and calendar, and refer to them during the day
  • To communicate simply about any change in activity, such as time for lunch or bedtime
  • Keep family and favorite objects and pictures of everything, but avoid a number of space
  • Approach the person calmly
  • Identify yourself or other people
  • Avoid arguments
  • The use of comfort measures, such as touch, if they help you
  • Reduce the levels of noise and other distractions
  • Providing eyeglasses and hearing aids

To prevent problems of complication

To help prevent medical problems:

  • Give the person the right of the drugs in the schedule of
  • Provide plenty of fluids and a healthy diet
  • Encourage regular physical activity
  • Get timely treatment of potential problems, such as infections

Caring for the caregiver

Caring for a person with delirium may be frightening and stressful. Take care of yourself too.

  • Consider joining a support group for caregivers.
  • Learn more about the condition.
  • Request brochures or other resources of a health care provider, non-profit organizations, community health services or government agencies.
  • Share the care with the family and friends who are familiar with the person to get a break.

The organizations that can provide information useful to include the Caregiver Action Network and the National Institute on Aging.

Preparing for your appointment

If you are a family member or primary caregiver of a person with delirium, is likely to play a role in making an appointment or the provision of information to the health care provider. Here's some information to help you prepare for your appointment and know what to expect.

What you can do

Before the appointment, make a list of:

  • All the medications that a person takes. That includes all prescription drugs, the drugs available without a prescription and supplements. Include the dose and take note of any recent changes in medications.
  • The names and contact information of any person providing care for the person with delirium.
  • The symptoms and when they started. Describe all of the symptoms and behavioral changes that began before the delirium of the symptoms. May include pain, fever, or cough.
  • Questions you want to ask the doctor.

What to expect from your doctor

A health care provider is likely to ask several questions about the person with delirium. These may include:

  • What are the symptoms and when do they start?
  • There is or there was a recent fever, cough, urinary tract infection or a sign of pain?
  • There was a recent head injury or other trauma?
  • What was the person's memory and other thinking skills, such as before the onset of symptoms?
  • How well did the person to perform the activities of daily living before the onset of symptoms?
  • Can the person tends to operate independently?
  • What other medical conditions that have been diagnosed?
  • Are prescription drugs taken as directed? When did the person take the most recent dose of each one of them?
  • Are there any new medications?
  • Do you know if the person who has recently used drugs or alcohol? Does the person have a history of alcohol and drug abuse? Is there any change in the usage pattern, such as the increase or stop using?
  • Has the person recently appeared depressed, very sad or withdrawn?
  • Has the person shows signs of not feeling safe?
  • There are signs of paranoia?
  • Has the person who has seen or heard things that no one else does?
  • Are there any new physical symptoms — for example, in the chest or stomach pain?

The doctor may ask additional questions based on their responses and symptoms of the individual and their needs. In the preparation of these questions will help you to make the most of your time with a provider.

Symptoms and treatment of Delirium