Answer :
Low oxygen tension inside the arterial blood (PaO2) is because of the incapacity of the lungs to properly oxygenate the blood. causes consist of hypoventilation, impaired alveolar diffusion, and pulmonary shunting. it's miles because of pump failure (coronary heart is unable to pump sufficient blood, and arterial oxygen shipping is impaired).
Hypoxemia is a beneath-ordinary degree of oxygen on your blood, in particular inside the arteries. Hypoxemia is a sign of a problem related to respiratory or circulate, and can result in various signs, inclusive of shortness of breath.
The current devices use two wavelengths and degree the absorption within the pulsatile detail of the blood glide, for that reason producing a degree of the oxygen saturation of arterial blood cut loose the non-pulsatile venous blood.
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