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Generalized hypoxia is a medical condition in which the tissues of the body are deprived of the necessary levels of oxygen due to an insufficient supply of oxygen, which may be due to the composition or pressure of the breathing gas, decreased lung ventilation, or respiratory disease, any of which may cause a lower than normal oxygen content in the arterial blood, and consequently a reduced ...
In conditions of hypoxic breathing gas, such as at high altitude, HPV is generalized over the entire lung, but with sustained exposure to generalized hypoxia, HPV is suppressed. [89] Hypoxic ventilatory response (HVR) is the increase in ventilation induced by hypoxia that allows the body to take in and transport lower concentrations of oxygen ...
Cerebral hypoxia is a form of hypoxia (reduced supply of oxygen), specifically involving the brain; ... CT in a person after generalized hypoxia.
Asphyxia or asphyxiation is a condition of deficient supply of oxygen to the body which arises from abnormal breathing. [3] [4] Asphyxia causes generalized hypoxia, which affects all the tissues and organs, some more rapidly than others.
Intrauterine hypoxia, when a fetus is deprived of an adequate supply of oxygen; Generalized hypoxia is hypoxia distributed amongst all tissues; Latent hypoxia is artificially raised oxygen concentration in the blood due to high ambient pressure and will reduce when the pressure is reduced to normal, associated with freediving blackout.
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 .
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]
A mismatch between oxygen supply and its demand at the cellular level may result in a hypoxic condition. Generalized hypoxia occurs when breathing mixtures of gases with a low oxygen content, e.g. while diving underwater especially when using closed-circuit rebreather systems that control the amount of oxygen in the supplied air, or when ...