Supplemental oxygen

Many patients require only a supplementary level of oxygen in the room air they are breathing, rather than pure or near pure oxygen, and this can be delivered through a number of devices dependent on the situation, flow required and in some instances patient preference.A nasal cannula (NC) is a thin tube with two small nozzles that protrude into the patients nostrils. It can only comfortably provide oxygen at low flow rates, 2