Evaluation of the performance of a rapid cardiothoracic US protocol, which combines echocardiographically derived E/e' and LUS, for diagnosing acute heart failure in patients with undifferentiated dyspnea in an emergency department showed that the rapid cardiothoracic US protocol provided excellent accuracy for diagnosing acute heart failure [22]. In a prospective, single-center study in the ICU, pulse oximetry and pulmonary US were found to be useful tools to screen for, or rule out, impaired oxygenation or lung abnormalities consistent with ARDS in underresourced settings in which arterial blood gas testing and chest radiography are not readily available [23]. In a prospective, single-center study, combining SpO2/FiO2 with US was found to be a useful tools in screening for, or ruling out, impaired oxygenation or lung abnormalities consistent with ARDS criteria in underresourced settings where arterial blood gas testing and chest radiography are not readily available [23]. Variant 4: Intensive care unit patient following support device placement. Initial imaging. Radiography Chest Portable Endotracheal Tube Placement Since 1980, there have been only 9 studies present in the literature [24-32] that evaluate the significance of chest radiography in assessing endotracheal tube placement following insertion. In 5 studies, between 12% and 15% of patients had malpositioned endotracheal tubes, many of which required repositioning. Two studies found 28% and 46% of tubes malpositioned upon insertion, and the single dissenting paper found that only 2% were malpositioned. Two studies compared radiographs with physical examination [24,33]. In both studies, physical examination predicted malpositioned tubes in 3% of patients, whereas the radiographs showed malpositioning in 14% of patients in one study and 28% in the other [24,33]. Kollef et al [34] found that the vast majority of malpositioned tubes were discovered in the first 3 days.
Intensive Care Unit Patients. Evaluation of the performance of a rapid cardiothoracic US protocol, which combines echocardiographically derived E/e' and LUS, for diagnosing acute heart failure in patients with undifferentiated dyspnea in an emergency department showed that the rapid cardiothoracic US protocol provided excellent accuracy for diagnosing acute heart failure [22]. In a prospective, single-center study in the ICU, pulse oximetry and pulmonary US were found to be useful tools to screen for, or rule out, impaired oxygenation or lung abnormalities consistent with ARDS in underresourced settings in which arterial blood gas testing and chest radiography are not readily available [23]. In a prospective, single-center study, combining SpO2/FiO2 with US was found to be a useful tools in screening for, or ruling out, impaired oxygenation or lung abnormalities consistent with ARDS criteria in underresourced settings where arterial blood gas testing and chest radiography are not readily available [23]. Variant 4: Intensive care unit patient following support device placement. Initial imaging. Radiography Chest Portable Endotracheal Tube Placement Since 1980, there have been only 9 studies present in the literature [24-32] that evaluate the significance of chest radiography in assessing endotracheal tube placement following insertion. In 5 studies, between 12% and 15% of patients had malpositioned endotracheal tubes, many of which required repositioning. Two studies found 28% and 46% of tubes malpositioned upon insertion, and the single dissenting paper found that only 2% were malpositioned. Two studies compared radiographs with physical examination [24,33]. In both studies, physical examination predicted malpositioned tubes in 3% of patients, whereas the radiographs showed malpositioning in 14% of patients in one study and 28% in the other [24,33]. Kollef et al [34] found that the vast majority of malpositioned tubes were discovered in the first 3 days.