Mechanical -ventilation

 A mechanical ventilator is a machine that helps a patient breathe (ventilate) when they are having surgery or cannot breathe on their own due to a critical illness. The patient is connected to the ventilator with a hollow tube (artificial airway) that goes in their mouth and down into their main airway or trachea The two main types of mechanical ventilation include positive pressure ventilation where air (or another gas mix) is pushed into the lungs through the airways, and negative pressure ventilation where air is usually, in essence, sucked into the lungs by stimulating movement of the chest Intubation is placing a tube in your throat to help move air in and out of your lungs. Mechanical ventilation is the uses of a machine to move air in and out of your lungs Common indications for mechanical ventilation include the following: Bradypnea or apnea with respiratory arrest. Acute lung injury and the acute respiratory distress syndrome. Tachypnea (respiratory rate >30 breaths per minute) There are three types of natural ventilation occurring in buildings: wind driven ventilation, pressure-driven flows, and stack ventilation