Ventilators and How They Work?
The severity of COVID-19 crisis has denied timely treatment to many patients at hospitals owing to a shortage of ventilators. Why patients with COVID-19 may require ventilators and how do ventilators help them recover?
COVID-19 is primarily a respiratory disease that can cause pneumonia. In more severe cases, acute respiratory distress syndrome (ARDS) may result in a build-up of fluids in the tiny air sacs of the lungs. This causes shortness of breath and people may require a ventilator to help them recover.
Ventilator is a form of life support. A mechanical ventilator is a machine that takes over the work of breathing when a person is not able to breathe enough. A patient may need a ventilator when their oxygen levels are low.
Ventilators mainly:
Ventilation is generally of invasive type, performed in the intensive care unit (ICU) of a hospital. An endotracheal tube (ET), is inserted into the patient's airway, and the setting is connected to a monitor that displays heart rate, respiratory rate, blood pressure, and oxygen saturation.
A ventilator only helps support a person until other treatments become effective. It can be lifesaving but has risks. The high air pressure can damage the lungs. Doctors try to keep this risk at a minimum by using the lowest amount of pressure that is needed.
Following the COVID-19 outbreak, manufacturers are boosting production of ventilators trying to meet the surging demand, on a war footing. There is also hope for better medical care with new technologies that allow telemonitoring of ventilators by doctors, while patients use ventilators at their homes!
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