Tuesday, February 14, 2012
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Low Sodium In Blood (Hyponatremia) Learning Center

Hyponatremia can be caused by abnormal consumption or excretion of dietary sodium or water and by diseases that impair the body's ability to regulate them. Maintenance of a low salt diet for many months or excessive sweat loss during a race on a h...
Source:Gale Encyclopedia of Medicine
Coma, from the Greek word "koma," meaning deep sleep, is a state of extreme unresponsiveness, in which an individual exhibits no voluntary movement or behavior. Furthermore, in a deep coma, even painful stimuli (actions which, when performed on a ...
Source:Gale Encyclopedia of Medicine
Coma, from the Greek word koma , meaning deep sleep, is a state of extreme unresponsiveness, in which an individual exhibits no voluntary movement or behavior. Furthermore, in a deep coma, even painful stimuli (actions which, when performed on a h...
Source:Gale Encyclopedia of Nursing and Allied Health
A seizure is the physical findings or changes in behavior that occur after an episode of abnormal electrical activity in the brain. See also: Generalized tonic clonic seizure; Partial (focal) seizure; Petit mal (absence) seizure; Epilepsy; Fever (...
Source:ADAM
Date:March 29, 2009
A seizure is a sudden change in behavior characterized by changes in sensory perception (sense of feeling) or motor activity (movement) due to an abnormal firing of nerve cells in the brain. Epilepsy is a condition characterized by recurrent seizu...
Source:Gale Encyclopedia of Neurological Disorders
A seizure is a sudden change in behavior characterized by changes in sensory perception (sense of feeling) or motor activity (movement) due to an abnormal firing of nerve cells in the brain . Epilepsy is a condition characterized by recurrent seiz...
Source:Gale Encyclopedia of Mental Disorders
A temporary series of uncontrollable muscle spasms brought on by unusual electrical activity in the brain. Also known as convulsion, clonic seizure, or tonic-clonic seizure. A seizure is characterized by a sudden episode of un- controllable brain ...
Source:Gale Encyclopedia of Childhood and Adolescence
Confusion is the inability to think with your usual speed or clarity, including feeling disoriented and having difficulty paying attention, remembering, and making decisions.
Source:ADAM
Date:February 13, 2008
Drowsiness refers to feeling abnormally sleepy during the day. People who are drowsy may fall asleep in inappropriate situations or at inappropriate times. See also: Idiopathic hypersomnia
Source:ADAM
Date:June 1, 2009
Hypersomnia refers to a set of related disorders that involve excessive daytime sleepiness.
Source:Gale Encyclopedia of Mental Disorders
A charley horse is the common name for a muscle spasm, especially in the leg. Muscle spasms can occur in any muscle in the body. When a muscle is in spasm, it contracts without your control and does not relax.
Source:ADAM
Date:July 10, 2009
Muscle spasms and cramps are spontaneous, often painful muscle contractions.
Source:Gale Encyclopedia of Alternative Medicine
Decreased consciousness is reduced alertness or awareness.
Source:ADAM
Date:April 21, 2009
Muscle cramps are involuntary and often painful contractions (movements) of the muscles.
Source:ADAM
Date:July 22, 2008
Muscle spasms and cramps are spontaneous, often painful muscle contractions.
Source:Gale Encyclopedia of Children's Health
Muscle spasms and cramps are spontaneous, often painful muscle contractions.
Source:Gale Encyclopedia of Medicine
A headache is pain or discomfort in the head, scalp, or neck. Serious causes of headaches are extremely rare. Most people with headaches can feel much better by making lifestyle changes, learning ways to relax, and occasionally by taking medicatio...
Source:ADAM
Date:October 27, 2009
A headache is a pain in the head and neck region that may be either a disorder in its own right or a symptom HEADACHE THERAPIES Description Type Acupressure Press pointer fingers beneath cheekbones and parallel to pupils (Stomach 3) for one minute...
Source:Gale Encyclopedia of Alternative Medicine
A headache involves pain in the head which can arise from many disorders or may be a disorder in and of itself.
Source:Gale Encyclopedia of Medicine
A headache involves pain in the head that can arise from many disorders or may be a disorder in and of itself.
Source:Gale Encyclopedia of Children's Health
Headache is a pain in the head and neck region that may be either a disorder in its own right or a symptom of an underlying medical condition or disease. The medical term for headache is cephalalgia. Headaches are one of the most common and univer...
Source:Gale Encyclopedia of Neurological Disorders
Fatigue is a feeling of weariness, tiredness, or lack of energy.
Source:ADAM
Date:August 3, 2009
Fatigue is physical and/or mental exhaustion that can be triggered by stress , medication, overwork, or mental and physical illness or disease.
Source:Gale Encyclopedia of Alternative Medicine
Fatigue may be defined as a subjective state in which one feels tired or exhausted, and in which the capacity for normal work or activity is reduced. There is, however, no commonly accepted definition of fatigue when it is considered in the contex...
Source:Gale Encyclopedia of Neurological Disorders
Fatigue may be defined as a subjective state in which one feels tired or exhausted, and in which the capacity for normal work or activity is reduced. There is, however, no commonly accepted definition of fatigue when it is considered in the contex...
Source:Gale Encyclopedia of Mental Disorders
Fatigue is physical and/or mental exhaustion that can be triggered by stress , medication, overwork, or mental and physical illness or disease.
Source:Gale Encyclopedia of Medicine
Fatigue is a feeling of exhaustion or loss of strength. The duration of fatigue for a patient with cancer has been found to last from one to two times the length of time between diagnosis and completion of treatment, so it is common for fatigue to...
Source:Gale Encyclopedia of Cancer
Vomiting is the forceful discharge of stomach contents through the mouth.
Source:Gale Encyclopedia of Alternative Medicine
Nausea is the sensation of having an urge to vomit. Vomiting is forcing the contents of the stomach up through the esophagus and out of the mouth.
Source:ADAM
Date:October 20, 2009
Nausea is the sensation of having a queasy stomach or being about to vomit. Vomiting , or emesis, is the expelling of undigested food through the mouth.
Source:Gale Encyclopedia of Alternative Medicine
Being tired is the familiar aftermath of physical exertion, prolonged labor or lack of sleep. When does being tired become a symptom of a condition? Fatigue, malaise, lassitude, exhaustion are all subtle variations of the same subjective feelings of not having enough energy to meet the demands of one's life.
Source:Healthline
Date:September 30, 2007
Irritability is an excessive response to stimuli.
Source:ADAM
Date:November 7, 2009
True muscle weakness means that full effort does not produce a normal muscle contraction or movement. A voluntary muscle contraction is generated when the brain sends a signal through the spinal cord and nerves to a muscle.
Source:Healthline
Date:September 30, 2007
Weakness is a reduction in the strength of one or more muscles.
Source:ADAM
Date:August 8, 2009
Agitation is an unpleasant state of extreme arousal, increased tension, and irritability.
Source:ADAM
Date:May 26, 2008
Hallucinations involve sensing things that aren't there while a person is awake and conscious.
Source:ADAM
Date:February 6, 2008
Hallucinations are false or distorted sensory experiences that appear to be real perceptions. These sensory impressions are generated by the mind rather than by any external stimuli, and may be seen, heard, felt, and even smelled or tasted.
Source:Gale Encyclopedia of Medicine
A hallucination is a false perception occurring without any identifiable external stimulus and indicates an abnormality in perception. The false perceptions can occur in any of the five sensory modalities. Therefore, a hallucination essentially is...
Source:Gale Encyclopedia of Mental Disorders
Anorexia is characterized by a loss of appetite or lack of desire to eat.
Source:Gale Encyclopedia of Cancer
Spasticity is stiff or rigid muscles with exaggerated, deep tendon reflexes (for example, a knee-jerk reflex. The condition can interfere with walking, movement, or speech. See also: Muscle cramps
Source:ADAM
Date:March 26, 2009
Spasticity is a form of muscle overactivity. A spastic muscle is one in which a muscle resists being stretched out, and the resistance to stretch is greater the faster the muscle is moved. Spasticity is often used as an umbrella term for other for...
Source:Gale Encyclopedia of Neurological Disorders
Spasticity is an abnormal increase in muscle tone. It may be associated with involuntary muscle spasms , sustained muscle contractions (dystonia), and exaggerated deep tendon reflexes that make movement difficult or uncontrollable. Although it mos...
Source:Gale Encyclopedia of Children's Health
Muscle rigidity is an alteration of muscle tone in which the muscles are in an involuntary state of continual tension. Muscle rigidity can be a manifestation of neurological damage (basal ganglia diseases) or a side effect of certain medications.
Source:Healthline
Date:October 31, 2007
A generalized tonic-clonic seizure is a seizure involving the entire body. It is also called a grand mal seizure. Such seizures usually involve muscle rigidity, violent muscle contractions, and loss of consciousness. Generalized tonic-clonic seizu...
Source:ADAM
Date:March 28, 2009
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