The New England journal of medicine
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Medicare should provide access to care and protection from catastrophic spending while not being so generous that beneficiaries overconsume low-value care, thus driving up costs. Setting cost sharing is a balancing act that the Medicare program doesn't perform very well.
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Capnography, the graphic display of the exhaled and inhaled carbon dioxide concentration plotted against time, is used to monitor ventilation. This video reviews the principles of capnography and explains how to interpret the information it provides.