To characterize mechanical ventilation, we collected data on the ventilator's settings: positive end-expiratory pressure (PEEP), set tidal volume (VT) (expressed both as rough value and indexed to ideal body weight), respiratory rate, and daily duration of mechanical ventilation. The results of daytime blood gases and nocturnal oximetry (performed with a Covidien Nellcor oximeter) were also collected at end follow up.
Nellcor oximeter
Manufactured by Medtronic
The Nellcor oximeter is a medical device used to measure the oxygen saturation levels in a patient's blood. It is a non-invasive tool that uses light-based technology to monitor the patient's pulse and oxygen levels.
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Lab products found in correlation
2 protocols using nellcor oximeter
1
Characterizing Mechanical Ventilation Settings
2
Comprehensive Pulmonary Function Evaluation
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A pulmonary function testing system (Vmax 229, SensorMedics, Yorba Linda, California) was used to make the spirometric-static measurements of vital capacity (VC), according to standard guidelines [14 (link)]. For the measurement of maximal inspiratory pressure (MIP) at the residual volume and maximal expiratory pressure (MEP) at total lung capacity, patients breathed into a mouthpiece connected to a manometer. The maneuvers were repeated at least three times or until two identical readings were obtained. For each maneuver, the best result was kept for the study [15 ].
From the routinely performed daytime arterial or arterialized capillary blood gases, we recorded diurnal carbon dioxide tension (pCO2) and bicarbonate. The results of nocturnal oximetry, performed with a Covidien Nellcor oximeter were also collected (percentage of sleep time with oxygen saturation SaO2 <90%). We also recorded apnea hypopnea index (AHI) from the first available polysomnography after the initial visit.
From the routinely performed daytime arterial or arterialized capillary blood gases, we recorded diurnal carbon dioxide tension (pCO2) and bicarbonate. The results of nocturnal oximetry, performed with a Covidien Nellcor oximeter were also collected (percentage of sleep time with oxygen saturation SaO2 <90%). We also recorded apnea hypopnea index (AHI) from the first available polysomnography after the initial visit.
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