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Acute Mountain Sickness Learning Center

Difficulty sleeping; Dizziness or light-headedness; Fatigue; Headache; Loss of appetite; Nausea or vomiting; Rapid pulse (heart rate)
Source:ADAM
Date:January 15, 2009
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
Dizziness is light-headedness, feeling like you might faint, being unsteady, loss of balance, or vertigo (a feeling that you or the room is spinning or moving. Most causes of dizziness are not serious and either quickly get better on their own or ...
Source:ADAM
Date:May 2, 2009
As a disorder, dizziness is classified into three categories—vertigo, syncope, and nonsyncope nonvertigo. Each category has a characteristic set of symptoms, all related to the sense of balance. In general, syncope is defined by a brief loss of co...
Source:Gale Encyclopedia of Medicine
As a disorder, dizziness is classified into three categories: vertigo, syncope, and nonsyncope nonvertigo. Each category has its own set of symptoms, all related to the sense of balance. In general, syncope is defined by a brief loss of consciousn...
Source:Gale Encyclopedia of Children's Health
Dizziness is a general term that describes sensations of imbalance and unsteadiness, such as vertigo, mild turning, imbalance, and near fainting or fainting. Feelings of dizziness stem from the vestibular system, which includes the brain and the p...
Source:Gale Encyclopedia of Neurological Disorders
Dizziness is classified into three categories—vertigo, syncope, and nonsyncope nonvertigo. Each category has a characteristic set of symptoms, all related to the sense of balance. In general, syncope is defined by a brief loss of consciousness (fa...
Source:Gale Encyclopedia of Alternative Medicine
Coughing is an important way to keep your throat and airways clear. However, excessive coughing may mean you have an underlying disease or disorder. Some coughs are dry, while others are considered productive. A productive cough is one that brings...
Source:ADAM
Date:November 15, 2009
A cough is a forceful release of air from the lungs that can be heard. Coughing protects the respiratory system by clearing it of irritants and secretions.
Source:Gale Encyclopedia of Medicine
A cough is a forceful release of air from the lungs that can be heard. Coughing protects the respiratory system by clearing it of irritants and secretions.
Source:Gale Encyclopedia of Alternative Medicine
A cough is a forceful release of air from the lungs that can be heard. Coughing protects the respiratory system by clearing it of irritants and secretions.
Source:Gale Encyclopedia of Children's Health
Breathing difficulty involves a sensation of difficult or uncomfortable breathing or a feeling of not getting enough air. See also: Difficulty breathing - first aid
Source:ADAM
Date:June 12, 2009
Shortness of breath, or dyspnea, is a feeling of difficult or labored breathing that is out of proportion to the patient's level of physical activity. It is a symptom of a variety of different diseases or disorders and may be either acute or chronic.
Source:Gale Encyclopedia of Medicine
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
Feeling lightheaded is a sensation that may precede syncope or fainting. It is usually experienced when in an upright position (standing or sitting). If
Source:Healthline
Date:September 30, 2007
Chest pain is discomfort or pain that you feel anywhere along the front of your body between your neck and upper abdomen.
Source:ADAM
Date:June 1, 2009
Paleness is an abnormal loss of color from normal skin or mucous membranes.
Source:ADAM
Date:April 13, 2009
Many people experience feel short of breath during strenuous activity if they are not accustomed to exercise. If you have a sudden onset of difficulty breathing doing a normal routine, it may be a medical emergency.
Source:Healthline
Date:September 30, 2007
The heart rate, usually measured by checking the arterial pulse or sounds counting the times of the heart beat, is considered one of the vital signs. Vital signs – body temperature, pulse, breathing rate, and blood pressure provide information about the state of health of a person and, if abnormal, offer clues to problems.
Source:Healthline
Date:September 30, 2007
Decreased consciousness is reduced alertness or awareness.
Source:ADAM
Date:April 21, 2009
Blue fingernails may represent a type of cyanosis caused by a lower level of lack of circulating oxygen in the red blood cells. It may also represent a high level of an abnormal form of hemoglobin in the circulation.
Source:Healthline
Date:September 30, 2007
Cyanosis is a physical sign causing bluish discoloration of the skin and mucous membranes. Cyanosis is caused by a lack of oxygen in the blood. Cyanosis is associated with cold temperatures, heart failure , lung diseases, and smothering. It is see...
Source:Gale Encyclopedia of Medicine
Cyanosis is a physical state characterized by bluish discoloration of the skin and mucus membranes. This elderly woman's lips turned purple due to central cyanosis, a condition most commonly due to slow blood circulation, leading to a bluish skin ...
Source:Gale Encyclopedia of Nursing and Allied Health
Apathy can be defined as an absence or suppression of emotion, feeling, concern or passion. Further, apathy is an indifference to things generally found to be exciting or moving.
Source:Gale Encyclopedia of Mental Disorders
Aversion to food and drink can be a temporary response to a benign illness, as with the common cold, or a response to a complex interaction of physical, mental and behavioral issues. While it is normal to experience a loss of appetite with certain conditions, when aversion to food and drink results in significant weight loss and nutritional deficits, it is important to seek medical advice.
Source:Healthline
Date:October 31, 2007
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
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 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 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 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
Insomnia is difficulty falling or staying asleep. In many cases, it can be relieved with a few simple behavioral changes or medication. Talk with your health care provider if you have any of the following symptoms: Difficulty falling asleep; Exces...
Source:ADAM
Date:April 25, 2008
Insomnia is the inability to obtain an adequate amount or quality of sleep. The difficulty can be in falling asleep, remaining asleep, or both. People with insomnia do not feel refreshed when they wake up. Insomnia is a common symptom affecting mi...
Source:Gale Encyclopedia of Medicine
Insomnia is a condition that occurs when a person in unable to get long enough or refreshing enough sleep at night. Insomnia can result from an inability to fall asleep, an inability to stay asleep, or waking too early before having gotten enough ...
Source:Gale Encyclopedia of Mental Disorders
Insomnia is the inability to obtain an adequate amount or quality of sleep. The difficulty can be in falling asleep, remaining asleep, or both. People with insomnia do not feel refreshed when they wake up. Insomnia is a common symptom affecting mi...
Source:Gale Encyclopedia of Alternative Medicine
Weakness is a reduction in the strength of one or more muscles.
Source:ADAM
Date:August 8, 2009
Anorexia is characterized by a loss of appetite or lack of desire to eat.
Source:Gale Encyclopedia of Cancer
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
An arrhythmia is a disorder of the heart rate (pulse) or heart rhythm, such as beating too fast (tachycardia), too slow (bradycardia), or irregularly.
Source:ADAM
Date:May 15, 2008
An arrhythmia is an abnormality in the heart's rhythm, or heartbeat pattern. The heartbeat can be too slow, too fast, have extra beats, skip a beat, or otherwise beat irregularly.
Source:Gale Encyclopedia of Medicine
Coughing up blood is the spitting up of blood or bloody mucus from the lungs and throat (respiratory tract. Hemoptysis is the medical term for coughing up blood from the respiratory tract.
Source:ADAM
Date:November 21, 2009
Hemoptysis is the coughing up of blood or bloody sputum from the respiratory tract. The blood can come from the nose, mouth, throat, airway passages leading from the lungs, or the lungs. Hemoptysis can range from small quantities of blood-stained ...
Source:Gale Encyclopedia of Cancer
Hemoptysis is the coughing up of blood or bloody sputum from the lungs or airway. It may be either self-limiting or recurrent. Massive hemoptysis is defined as 200–600 mL of blood coughed up within a period of 24 hours or less.
Source:Gale Encyclopedia of Medicine
Blue lips may represent a type of cyanosis caused by a lower level of circulating oxygen in the red blood cells. It may also represent a high level of an abnormal form of hemoglobin in the circulation.
Source:Healthline
Date:September 30, 2007
Blood-tinged sputum is distinguished from frank hemoptysis—or coughing up blood without or with very little sputum—which can be a potentially life-threatening condition requiring immediate medical attention. Sputum that is streaked with blood may be due to something as benign as irritation of upper-airway passages due to dry ambient air, or it may a sign of a more serious medical condition, such as pneumonia or a blood clot in the lung, especially if accompanied by other symptoms..
Source:Healthline
Date:September 30, 2007
Gait and balance problems exist when a disease process, trauma, or aging result in the inability to control one's center of gravity (COG) over the base of support (BOS) in static or dynamic tasks and environments.
Source:Gale Encyclopedia of Nursing and Allied Health
Cyanosis refers to a bluish cast to the skin and mucous membranes caused by a lower level of circulating oxygen carried by the red blood cells. It may also represent a high level of an abnormal form of hemoglobin in the circulation.
Source:Healthline
Date:September 30, 2007
The heart rate, usually measured by checking the arterial pulse or sounds counting the times of the heart beat, is considered one of the vital signs. Vital signs – body temperature, pulse, breathing rate, and blood pressure provide information about the state of health of a person and, if abnormal,offer clues to problems.
Source:Healthline
Date:September 30, 2007
Walking abnormalities are unusual and uncontrollable walk patterns, usually caused by diseases or injuries to the legs, feet, brain, spine, or inner ear.
Source:ADAM
Date:March 26, 2009
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