Inhalation, in a concentration of 40-60%, in a mixture with air, in an amount of 4-5 l / min.
When breathing is weakened in the postoperative period, when poisoning, intoxication is used 100% oxygen or a mixture of carbonic acid.
Dosage regimen in all age groups, except for newborns, coincides.
To introduce oxygen in high and low concentrations, different equipment is used. The minimum concentration of oxygen should not be lower than its content in atmospheric air (20.9%).
Systems for inhalation with a fixed concentration of oxygen (regardless of the patient's breathing attempts): high flow - masks that provide oxygen supply at a high flow rate; low flow - anesthesia contours. In these systems, the oxygen concentration is set by the doctor.
Systems for inhalation, providing the supply of different concentrations of oxygen (depending on the patient's inspiration): without recycling - catheters and cannulas; with recirculation - oxygen masks.These systems work only in conditions of independent breathing of the patient, which the inhales the gas mixture. The oxygen content of the gas mixture will depend on the condition of the patient and the device used. In newborns, the concentration of oxygen in the inhaled mixture should not exceed 40% (the risk of retrolental fibroplasia).
In elderly patients with chronic bronchitis, the inhaled oxygen concentration should be increased by 1% and not exceed 30% (most often).
Hyperbaric oxygenation: the procedure is carried out in special pressure chambers, for therapeutic purposes apparatuses (single-chamber chambers) are used that create an oxygen pressure of 1.2-1.6-2 atm. Conduct 1 session per day (40-60 minutes), the course of treatment - 8-10 sessions. With gastric ulcer and duodenal ulcer, chronic hepatitis is injected under a pressure of 0.7-1 excess atm. (sessions for 45 minutes); course of treatment - 15 sessions.
Hypoxicotherapy: special training, leading to oxygen deficiency (normobaric hypoxia) by using gas mixtures with a reduced oxygen content to create artificial hypoxia (at normal atmospheric pressure).