altitude sickness


altitude sickness
= mountain sickness
the condition that results from unaccustomed exposure to a high altitude (4500 m or more above sea level). Reduced atmospheric pressure and shortage of oxygen cause deep rapid breathing (hyperventilation), which lowers the concentration of carbon dioxide in the blood (see alkalosis). Symptoms include nausea, exhaustion, and anxiety. In severe cases there may be acute shortness of breath due to fluid collecting in the lungs (pulmonary oedema), which requires treatment by diuretics and return to a lower altitude.

The new mediacal dictionary. 2014.

Look at other dictionaries:

  • Altitude sickness — Infobox Disease Name = Altitude sickness Caption = DiseasesDB = 8375 DiseasesDB mult = DiseasesDB2|29615 ICD10 = ICD10|T|70|2|t|66 ICD9 = ICD9|E902.0 ICDO = OMIM = MedlinePlus = eMedicineSubj = med eMedicineTopic = 3225 MeshID = D000532 Altitude… …   Wikipedia

  • altitude sickness — Pathol. a condition affecting some persons at high altitudes, caused by insufficient oxygen in the blood and characterized by dizziness, nausea, and shortness of breath. [1915 20] * * * or mountain sickness Acute reaction to a change from low… …   Universalium

  • Altitude sickness — 1. Altitude sickness (or altitude illness) is a disorder caused by being at high altitude. It more commonly occurs above 8,000 feet (2,440 meters). The cause of altitude illness is a matter of oxygen physiology. At sea level the concentration of… …   Medical dictionary

  • altitude sickness — noun effects (as nosebleed or nausea) of oxygen deficiency in the blood and tissues at high altitudes • Hypernyms: ↑hypoxia • Hyponyms: ↑mountain sickness * * * ˈaltitude sickness 7 [altitude sickness] …   Useful english dictionary

  • altitude sickness — noun A pathological condition caused by oxygen deficiency at high altitudes; symptoms include shortness of breath, nausea, and nosebleed. Syn: apoxia, mountain sickness …   Wiktionary

  • altitude sickness — In general, any sickness brought on by exposure to reduced partial pressure of oxygen and barometric pressure …   Aviation dictionary

  • altitude sickness — noun illness caused by ascent to high altitude, characterized by hyperventilation, nausea, and exhaustion resulting from shortage of oxygen …   English new terms dictionary

  • altitude sickness — noun Date: 1920 the effects (as nosebleed or nausea) of oxygen deficiency in the blood and tissues developed at high altitudes having reduced atmospheric pressure …   New Collegiate Dictionary

  • altitude sickness — UK / US noun [uncountable] an illness caused by the small amount of oxygen in the air when you are very high up, for example on a mountain …   English dictionary

  • altitude sickness — al′titude sick ness n. pat a disorder associated with the low oxygen content of the atmosphere at high altitudes, in acute conditions resulting in prostration, shortness of breath, and cardiac disturbances …   From formal English to slang


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