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Silent hypoxia (also known as happy hypoxia) [115] [116] is generalised hypoxia that does not coincide with shortness of breath. [117] [118] [119] This presentation is known to be a complication of COVID-19, [120] [121] and is also known in atypical pneumonia, [122] altitude sickness, [123] [124] [125] and rebreather malfunction accidents. [126 ...
The therapeutic effect of hypothermia is not confined to metabolism and membrane stability. Hypothermia can also prevent the injuries that occur after circulation returns to the brain, or what is termed reperfusion injuries. In fact, an individual suffering from an ischemic insult continues suffering injuries well after circulation is restored.
Also in 2016, Quizlet launched "Quizlet Live", a real-time online matching game where teams compete to answer all 12 questions correctly without an incorrect answer along the way. [15] In 2017, Quizlet created a premium offering called "Quizlet Go" (later renamed "Quizlet Plus"), with additional features available for paid subscribers.
Tissue hypoxia refers to low levels of oxygen in the tissues of the body and the term hypoxia is a general term for low levels of oxygen. [2] Hypoxemia is usually caused by pulmonary disease whereas tissue oxygenation requires additionally adequate circulation of blood and perfusion of tissue to meet metabolic demands. [4]
Silent hypoxia (also known as happy hypoxia) [1] [2] is generalised hypoxia that does not coincide with shortness of breath. [ 3 ] [ 4 ] [ 5 ] This presentation is known to be a complication of COVID-19 , [ 6 ] [ 7 ] and is also known in walking pneumonia , [ 8 ] altitude sickness , [ 9 ] [ 10 ] [ 11 ] and rebreather diving .
Cerebral hypoxia can also be classified by the cause of the reduced brain oxygen: [23] Hypoxic hypoxia – Limited oxygen in the environment causes reduced brain function. Divers, aviators, [24] Mountain climbers and firefighters are all at risk for this kind of cerebral hypoxia. The term also includes oxygen deprivation due to obstructions in ...
Hypoxia: Poor oxygen delivery (hypoxia) in utero resulting in compensatory increased production of red blood cells (erythropoeisis). Hypoxia can be either acute or chronic. Acute hypoxia can occur as a result of perinatal complications. Chronic fetal hypoxia is associated with maternal risk factors such as hypertension, diabetes and smoking. [10]
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.