![]() ![]() Since some of these systems rebreathe exhaled gases, this terminology is technically incorrect. The group of such systems is called Mapleson or non-rebreathing systems. The cost of purchasing a rebreather compared to its operating cost is relatively high.Ĭhemical absorbents for CO2 are not used in nonrebreathing systems, but rather the system relies on high flow rates of fresh gas to flush out exhaled CO2. Anesthetic, oxygen, heat, and moisture are conserved in rebreathing systems over nonrebreathing systems, but ventilation is more difficult. After removing carbon dioxide, their exhaled gases flow back into the patient, thus they are termed rebreathing systems. ![]() The anesthesia machine is a complex piece of equipment, but it plays a vital role in ensuring that patients receive the care they need during surgery.Ĭhemical absorbents are used to absorb carbon dioxide exhaled by rebreathing systems. In addition, the anesthesia machine also has several safety features, such as alarms that sound if the oxygen level drops below a certain level. The proportional valve is used to maintain the oxygen concentration at a safe level, and the breathing tubes transport the gas mixture to the patient. The pressure regulator ensures that the gas pressure remains constant, while the flow meter controls the flow of gas. Its function is to deliver a controlled mix of gases to the patient, and it accomplishes this by regulating pressure and flow. The anesthesia machine is a vital piece of equipment in any operating room.
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