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Nosocomial pneumonia is a lung infection that develops during hospitalization and was not present or incubating when the patient was admitted. It includes hospital-acquired pneumonia and ventilator-associated pneumonia, which occurs in patients receiving invasive mechani...

Noninvasive positive pressure ventilation is a method of supporting breathing without inserting an endotracheal tube or creating a tracheostomy. Positive pressure is delivered through an external interface, such as a nasal, oronasal, full-face, total-face, or helmet-styl...

Noninvasive ventilation is a method of supporting breathing without inserting an endotracheal or tracheostomy tube. Respiratory assistance is delivered through an external interface, such as an oronasal mask, nasal mask, total-face mask, nasal pillows, helmet, or mouthpi...

The National Board for Respiratory Care, commonly known as the NBRC, is the primary credentialing organization for respiratory therapists and pulmonary function technologists in the United States.

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Nasal flaring is the visible widening of the nostrils during inspiration. It occurs when the muscles around the nose contract to enlarge the nasal openings and reduce resistance to airflow. Although nasal flaring may occur briefly during strenuous exercise, it is ...