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The MediPines Gas Exchange Monitor (GEM) is a non-invasive, multi-parameter respiratory monitoring device that provides spot-check respiratory gas measurements of oxygen (PO2, ETO2) and carbon dioxide (PCO2, ETCO2) from breathing, respiration rate (RR), functional saturation of arterial hemoglobin (SpO2), pulse rate (PR), and a range of other calculated indices. At-rest patient measurements are obtained in a spot-check measurement session lasting approximately two minutes, using specified accessories which include a single patient use breathing gas mouthpiece, a single patient use nose clip, and a reusable pulse oximeter finger sensor. The device is indicated for use by qualified medical personnel in professional healthcare facilities on conscious and cooperative patients who are eighteen (18) years and older. The GEM is not to be utilized simultaneously with supplemental Oxygen nor with other respiratory gases or agents. The MediPines Gas Exchange Monitor (GEM) is not intended to be used as the sole basis for making diagnosis or treatment decisions related to patient gas exchange; it is intended to be used in conjunction with additional methods of assessing clinical signs and symptoms. It is not intended to replace arterial blood gas sampling for treatment purposes.

The Gas Exchange Monitor (GEM) is a non-invasive multi-parameter respiratory monitoring system that uses at-rest spot check breath samples to provide respiratory measurements of oxygen (PO₂, ETO₂) and carbon dioxide (PCO₂, ETCO₂) from breathing, respiration rate (RR), functional saturation of arterial hemoglobin (SpO2), pulse rate (PR), and a range of other calculated indices to assess a patient's respiratory status. The device utilizes a single patient use disposable mouthpiece attached to the monitor via a tubing system and an attached pulse oximetry probe. A nose clip is used during the measurement session and real-time tracing of breath samples are displayed on the device screen and may be exported as PDF and image files.