When Accompanying : After Analyses Of Gas Of

When accompanying : after Analyses of gas of blood, peripheral it is caused, usually, . -- Occurrence of a bluish shade to a skin i-or mucous membranes, which Are not connected with or peripheral . The majority of the reasons It is connected with poisonings with metals (for example, silver nitrate, Silver, metal silver, etc.) or medicines (for example, phenothiazines, amiodarone, chloroquine hydrochloride and ,). So central Results from incomplete saturation of arterial blood Oxygen. Threshold level makes 85 % from norm or less. At persons With a dark skin it can be imperceptible, while this indicator not Will fall to 75 % from norm. 1. Infringement of function of lungs: easing of ventilation of alveoluses or decrease in diffusion of oxygen; meets at a pneumonia, a hypostasis of lungs, is more often. 2. Shunting: hit of the nonsaturated Blue blood oxygen in an arterial channel occurs at Congenital heart disease or pulmonary the shunt. 3. Decrease in the maintenance of oxygen in inhaled air: there can be at height more than 2400 m.