Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Recording of a preterm infant receiving positive pressure ventilation. The tracing shows pressure (red), flow (green), expiratory volume (blue), and pulse rate (red). The blue arrow points a part of the volume entering the oropharynx at the start of the inflation. The green arrow points at the part of volume entering the lungs when the pressure time integral is large enough to overcome the resistance of the glottis and upper airway.
