Diseases & conditions A-Z List
Diseases & Conditions A-Z List - «E»:
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Ehlers-Danlos syndrome
Ehlers-Danlos syndrome is a group of inherited disorders marked by extremely loose joints, hyperelastic skin that bruises easily, and easily damaged blood vessels.
Causes
There are six major types and at least five minor types of Ehlers-Danlos syndrome (EDS).
A variety of gene mutations (changes) c...
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Ehrlichiosis
Ehrlichiosis is an infectious disease transmitted by the bite of a tick.
Causes
Ehrlichiosis is caused by bacteria that belong to the family called Rickettsiae. Rickettsial bacteria cause a number of serious diseases worldwide, including Rocky Mountain spotted fever and typhus. All of these disease...
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Eisenmenger syndrome
Eisenmenger syndrome is a condition that affects blood flow from the heart to the lungs in some babies who have structural problems of the heart.
Causes
Eisenmenger syndrome is caused by a defect in the heart. Most often, babies with this condition are born with a hole between the two pumping chamb...
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Elbow pain
This article describes aching or other discomfort in the elbow that is not related to direct injury.
Causes
Elbow pain can be caused by a variety of problems. A common cause in adults is tendinitis, an inflammation and injury to the tendons -- soft tissues that attach muscle to bone.
People who pl...
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Elbow replacement
Elbow replacement is surgery to replace the bones of the elbow joint with artificial joint parts (prosthetics).
Description
The elbow joint is made up of 2 bones: 1 from the upper arm (the humerus) and 1 from the lower arm (the ulna). The artificial elbow joint has 2 stems made of high-quality meta...
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Elbow replacement - discharge
You had elbow replacement surgery to replace your elbow joint with artificial joint parts (prosthetics). Your surgeon made an incision or cut in the back of your upper or lower arm. Your surgeon removed any damaged tissue and parts of the bones that make up your elbow. Then your surgeon put your art...
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Elder care - resources
The following organizations are good resources for information on aging and elder care:
Administration on Aging - www.aoa.gov
National Institute on Aging - www.nia.nih.gov
Alternative Names
Resources - elder care...
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Electrocardiogram
An electrocardiogram (ECG) is a test that records the electrical activity of the heart.
See also:
Holter monitoring.
Stress test
How the Test is Performed
You will be asked to lie down. The health care provider will clean several areas on your arms, legs, and chest, and then attach small patch...
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Electrolytes
Electrolytes are minerals in your blood and other body fluids that carry an electric charge.
See also:
Ionized calcium
Ions
Serum calcium
Serum chloride
Serum magnesium
Serum phosphorus
Serum sodium
Sweat electrolytes
Information
It is important to keep a balance of electrolytes i...
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Electrolytes - urine
The electrolytes - urine test measures specific chemicals called electrolytes in urine. It usually measures the levels of calcium, chloride, potassium, or sodium.
See also:
Calcium - urine
Chloride - urine
Potassium - urine
Sodium - urine
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Electromyography
Electromyography (EMG) is a test that checks the health of the muscles and the nerves that control the muscles.
See also: Nerve conduction velocity test
How the Test is Performed
The health care provider will insert a very thin needle electrode through the skin into the muscle. The electrode on th...
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Electronystagmography
Electronystagmography is a test to look at voluntary and involuntary eye movements. It evaluates the acoustic nerve, which runs from the brain to the ears (and control hearing and balance) and the occulomotor nerve, which runs from the brain to the eyes.
How the Test is Performed
Patches called ele...
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Electroretinography
Electroretinography is a test to measure the electrical response of the eye's light-sensitive cells, called rods and cones. These cells are part of the retina (the back part of the eye).
How the Test is Performed
While you are in a sitting position, the health care provider places numbing drops int...
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Elephant ear
Elephant ear plants are indoor or outdoor plants with very large, arrow-shaped leaves. Poisoning may occur if you eat parts of this plant.
This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local eme...
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ELISA
ELISA stands for enzyme-linked immunoassay. It is a commonly used laboratory test to detect antibodies in the blood.
How the Test is Performed
Blood is typically drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is cleaned with germ-killing medicine (antisept...
