Diminished amount (reduced saturation) of oxygen in arterial blood (PaO2/FiO2 ratio less than 200 mm Hg); hypoxic hypoxemia–interference with pulmonary oxygenation; stagnant hypoxia–a reduction in blood flow, as seen in the finger nails in surgical shock or in cold weather.
An abnormally low level of oxygen in the blood. When a patient's arterial blood sample is measured and a low level of oxygen is noted it is more appropriate to refer to hypoxemia rather than hypoxia. Determination of hypoxia involves a much more sophisticated evaluation of the patient. [Click Here To Return To List