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Electrocardiogram (ECG or EKG):  A test that records the electrical activity of the heart.  It is used to find abnormal heart rhythms, which can affect how well blood flows through the body. When blood does not flow well there is a greater risk of developing a blood clot that can lead to a stroke.

Echocardiogram (Echo, 2D Echo, or Cardiac Echo):  Painless ultrasound waves are used to take a picture of your heart and the circulating blood.  The ultrasound probe may be placed on your chest (Trans-Thoracic Echocardiogram or TTE) or deep in your throat (Trans-Esophageal Echocardiogram or TEE).

Edema:  Pooling of fluid in parts of the body which results in swelling in the area.

Electroencephalogram (EEG):  A test that records the electrical activity of the brain from electrodes attached to the scalp.

Embolic stroke:  A stroke caused by a blood clot that has come from somewhere else in the body (an embolus).

Embolus:  A fragment of a blood clot that breaks away and gets stuck in an artery blocking blood flow.

Emergency department:  A hospital or primary care department that provides initial treatment to patients with various illnesses and injuries, some of which may be life-threatening and require immediate attention.

Emergency medical services (EMS):  Often called paramedics or first responders.  They complete the initial assessment during medical emergencies and provide transport to hospital for persons with illnesses and injuries who require further medical attention.

Emotional lability:  Bursts of extreme emotions (such as laughing or crying) that a person cannot control. There is often no real cause for the emotional response. 

Enteral tube:  Delivery of nutrients directly into the digestive system via a tube.

Executive function:  Thinking skills related to the frontal lobes of the brain, such as planning, reasoning, time perception, decision making and memory.

Exercise therapy:  Treatment to improve physical, cognitive and/or speech abilities.