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Hypoxia (medicine) Hypoxia is a condition in which the body or a region of the body is deprived of adequate oxygen supply at the tissue level. [ 1] Hypoxia may be classified as either generalized, affecting the whole body, or local, affecting a region of the body. [ 2] Although hypoxia is often a pathological condition, variations in arterial ...
Other names. Hypoxaemia. Blood with higher oxygen content appears bright red. Specialty. Pulmonology. Hypoxemia is an abnormally low level of oxygen in the blood. [ 1][ 2] More specifically, it is oxygen deficiency in arterial blood. [ 3] Hypoxemia has many causes, and often causes hypoxia as the blood is not supplying enough oxygen to the ...
Intermittent hypoxia (also known as episodic hypoxia) is an intervention in which a person or animal undergoes alternating periods of normoxia and hypoxia. Normoxia is defined as exposure to oxygen levels normally found in Earth's atmosphere (~21% O 2 ) and hypoxia as any oxygen levels lower than those of normoxia.
Cerebral hypoxia. Cerebral hypoxia is a form of hypoxia (reduced supply of oxygen ), specifically involving the brain; when the brain is completely deprived of oxygen, it is called cerebral anoxia. There are four categories of cerebral hypoxia; they are, in order of increasing severity: diffuse cerebral hypoxia (DCH), focal cerebral ischemia ...
10–80 per 100,000 Respiratory failure results from inadequate gas exchange by the respiratory system , meaning that the arterial oxygen, carbon dioxide, or both cannot be kept at normal levels. A drop in the oxygen carried in the blood is known as hypoxemia ; a rise in arterial carbon dioxide levels is called hypercapnia .
An altered level of consciousness is any measure of arousal other than normal. Level of consciousness ( LOC) is a measurement of a person's arousability and responsiveness to stimuli from the environment. [1] A mildly depressed level of consciousness or alertness may be classed as lethargy; someone in this state can be aroused with little ...
Obesity. Obesity hypoventilation syndrome ( OHS) is a condition in which severely overweight people fail to breathe rapidly or deeply enough, resulting in low oxygen levels and high blood carbon dioxide (CO 2) levels. The syndrome is often associated with obstructive sleep apnea (OSA), which causes periods of absent or reduced breathing in ...
Gastroenterology. In medicine, hepatopulmonary syndrome is a syndrome of shortness of breath and hypoxemia (low oxygen levels in the blood of the arteries) caused by vasodilation (broadening of the blood vessels) in the lungs of patients with liver disease. Dyspnea and hypoxemia are worse in the upright position (which is called platypnea and ...