| hypoxia | Reduction of oxygen supply to tissue below physiological levels despite adequate perfusion of the tissue by blood. (cf. Anoxia). (18 Nov 1997) |
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| hypoxia warning system | A device designed to produce an audio or visual signal at a predetermined level of oxygen partial pressure; ideally, the system would warn of impending hypoxia in time for corrective action to be taken. (05 Mar 2000) |
| hypoxia-ischemia | See hypoxia. Ischemia refers to blood flow to cells and organs that is not sufficient to maintain their normal function. (12 Dec 1998) |
| hypoxic | Denoting or characterised by hypoxia. (05 Mar 2000) |
| hypoxic hypoxia | Hypoxia resulting from a defective mechanism of oxygenation in the lungs; may be caused by a low tension of oxygen, abnormal pulmonary function or respiratory obstruction, or a right-to-left shunt in the heart. (05 Mar 2000) |
| hypoxic nephrosis | Acute oliguric renal failure following haemorrhage, burns, shock, or other causes of hypovolaemia and reduced renal blood flow; frequently associated with patchy tubular necrosis, tubulorrhexis, and distal tubular casts of haemoglobin. (05 Mar 2000) |
| hypoxic-hypercarbic encephalopathy | Coma seen with advanced lung failure and resultant hypoventilation. Synonym: CO2 narcosis, hypoxic-hypercarbic encephalopathy, pulmonary encephalopathy. (05 Mar 2000) |
| hypoxic-ischemic encephalopathy | Damage to cells in the central nervous system (the brain and spinal cord) from inadequate oxygen. Hypoxic-ischemic encephalopathy allegedly may cause in death in the newborn period or result in what is later recognised as developmental delay, mental retardation, or cerebral palsy. This is an area of considerable medical and medicolegal debate. (12 Dec 1998) |