hyperoxia

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hyperoxia

[hi″per-ok´se-ah]

an abnormally increased supply or concentration of oxygen.

hy·per·ox·i·a

(hī'pĕr-ok'sē-ă),

1. An increased amount of oxygen in tissues and organs.

2. A greater oxygen tension than normal, such as that produced by breathing air or oxygen at pressures greater than 1 atmosphere.

Farlex Partner Medical Dictionary © Farlex 2012

hyperoxia

(hī′pər-ŏk′sē-ə)

1. An excess of oxygen in tissues and organs.

2. A higher than normal oxygen tension, such as that produced by breathing air or oxygen at greater than atmospheric pressures.

hy·per·ox·i·a

(hī'pĕr-ok'sē-ă)

1. An increased amount of oxygen in tissues and organs.

2. A greater oxygen tension than normal.

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

hy·per·ox·i·a

(hī'pĕr-ok'sē-ă)

1. An increased amount of oxygen in tissues and organs.

2. A greater oxygen tension than normal.

Medical Dictionary for the Dental Professions © Farlex 2012

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Regarding oxygen saturation, there was a clinical difference between animals in which PEEP 2 was used (96% saturation) and those receiving PEEP 5 (99% saturation, hyperoxia) and PEEP 10 (100% saturation, hyperoxia), with the same Fi[O.sub.2] (100%).

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Supportive care may include assisted ventilation, with care to avoid hypocarbia and hyperoxia. [2] Hypocarbia causes vasoconstriction with decreased cerebral perfusion and hyperoxia increases oxidative stress; therefore the recommended PaC[O.sub.2] is 40-55 mmHg and Pa[O.sub.2] is 50 -100 mmHg.

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Further work showed the differential gene effects of pressure and oxygen, (33) whereby different and similar clusters of neuronal genes are affected by different pressures and different amounts of hyperoxia. (34) In essence, during hyperbaric therapy physicians are playing a symphony with patients' gene expression, the music of which is determined by the various pressures and amounts of hyperoxia to which the patient is exposed.

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