Diseases & conditions A-Z List
Diseases & Conditions A-Z List - «D»:
Delta agent (Hepatitis D)
Delta agent is a type of virus called hepatitis D that causes symptoms only in people who have a hepatitis B infection.
Hepatitis D virus (HDV) is only found in people who carry the hepatitis B virus. HDV may make a hepatitis B infection or existing hepatitis B liver disease worse. It can ca...
Delta-ALA is a protein (amino acid) produced by the liver. A test can be done to measure the amount of this substance in your urine.
How the Test is Performed
Your health care provider will instruct you, if necessary, to stop taking drugs that may interfere with the test. A 24-hour urine sample is ...
Dementia is a loss of brain function that occurs with certain diseases. It affects memory, thinking, language, judgment, and behavior.
See also: Alzheimer's disease
Most types of dementia are nonreversible (degenerative). Nonreversible means the changes in the brain that are causing the dem...
Dementia - behavior and sleep problems
People with dementia often have certain problems when it gets dark at the end of the day and into the night. This problem is called "sundowning." The problems that get worse include increased confusion, anxiety, agitation, confusion, and not being able to get to sleep and stay asleep.
See also: Deme...
Dementia - daily care
People who have dementia may have trouble with language and communication, eating, memory, and basic care for themselves.
Help with Memory Loss
People who have early memory loss can give themselves reminders to help them function each day. Some of these are:
Ask the person you are talking with to ...
Dementia - home care
Dementia is a loss of brain function that occurs with certain diseases. It affects memory, thinking, and behavior.
Someone with dementia will need support in the home as the disease worsens. Family members or other caregivers can help by trying...
Dementia - keeping safe in the home
It is important to make sure the home of someone who has dementia is safe for them.
Dementia and driving
Dementia - daily care
Safety Tips for the Home
Wandering can be a serious problem in people who have more advanced dementia. These tips may help prevent wandering:
Place alarms ...
Dementia - what to ask your doctor
You are caring for someone who has dementia. Below are some questions you may want to ask your doctor or nurse to help you take care of that person.
Are there ways that I can help someone with their memory around the home?
How should I talk with someone who is losing or has lost their mem...
Dementia and driving
If your loved one has dementia, deciding when they can no longer drive is a difficult decision. They may react in different ways:
They may be aware they are having problems, and they may be relieved to stop driving.
They may feel their independence is being taken away.
Signs that Driving May No L...
Dementia due to metabolic causes
Dementia is a loss of brain function over weeks, months, or years that occurs with certain diseases. It affects memory, thinking, language, judgment, and behavior. Similar changes that occur over hours or a day or two is called delirium or encephalopathy.
Metabolism refers to all the physical and ch...
Dengue fever is a virus-based disease spread by mosquitoes.
See also: Dengue hemorrhagic fever
Dengue fever is caused by one of four different but related viruses. It is spread by the bite of mosquitoes, most commonly the mosquito Aedes aegypti, which is found in tropic and subtropic region...
Dengue hemorrhagic fever
Dengue hemorrhagic fever is a severe, potentially deadly infection spread by certain species of mosquitoes (Aedes aegypti).
See also: Dengue fever
Four different dengue viruses are known to cause dengue hemorrhagic fever. Dengue hemorrhagic fever occurs when a person catches a different typ...
Dental care - adult
Tooth decay and gum disease are largely caused by plaque, a sticky combination of bacteria and food. Plaque begins to accumulate on teeth within 20 minutes after eating. If this plaque is not removed thoroughly each day, tooth decay will flourish. Over time, plaque will harden into tartar.
Dental care - child
Proper care of your child's teeth and gums includes brushing and rinsing, routine dental exams, and any necessary treatments such as fluoride, extractions, fillings, or braces and other orthodontics.
See also: Dental care - adult
Healthy teeth and gums are essential to your child's ov...
Cavities are holes, or structural damage, in the teeth.
See also: Early childhood caries
Tooth decay is one of the most common of all disorders, second only to the common cold. It usually occurs in children and young adults but can affect any person. It is a common cause of tooth loss in yo...