Helps remove carbon dioxide: The ventilator can help the patient remove carbon dioxide from their body with an increased respiratory rate or tidal volume.It also can deliver positive end-expiratory pressure (PEEP), which is helpful in patients with refractory hypoxemia. Maintains adequate oxygenation: The ventilator can deliver an FiO2 of up to 100% to help with oxygenation.Decreases work of breathing: The ventilator assists with the patient’s breathing, which can help to decrease the amount of energy and work required for each breath.There are many benefits for patients who are receiving mechanical ventilation, including the following: In such a case, a ventilator would be used to provide breathing support until the patient’s underlying condition is reversed. In general, mechanical ventilation is indicated whenever a patient’s spontaneous breathing is not adequate to sustain life. Therefore, mechanical ventilation can help bypass the obstruction. Upper airway obstruction: Conditions that cause upper airway obstructions, such as epiglottitis and laryngeal edema, can prevent patients from being able to move air into the lungs.Inability to protect the airway: When a patient is at risk of aspirating secretions into the lung, they may require intubation and mechanical ventilation to protect their airway.Severe hypotension: Conditions that cause extremely low blood pressure, such as shock, sepsis, and congestive heart failure (CHF), often require mechanical ventilation.This can lead to respiratory failure, which often requires ventilatory support. Severe asthma: During an asthma exacerbation, the airways constrict and make it difficult to move air in and out of the lungs.Acute lung injury (ALI): This is an injury to the lungs that occurs from an acute event such as sepsis, pneumonia, aspiration, or trauma.Mechanical ventilation helps the patient remove carbon dioxide during exhalation. Insufficient ventilation: When a patient is not removing enough carbon dioxide from their body, it results in increased acidity of the blood (i.e., respiratory acidosis).Mechanical ventilation can help deliver oxygen to the lungs, which is then distributed throughout the body. Insufficient oxygenation: When a patient is not receiving enough oxygen (i.e., hypoxemia), it can impact the functionality of tissues and vital organs of the body.Some of the most common reasons why a patient may require mechanical ventilation include:
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