What is one function of the ventilator in NIV?

The correct answer is that one function of the ventilator in noninvasive ventilation (NIV) is to assist with ventilatory capacity and improve oxygenation. NIV is designed to provide support to patients who may have compromised respiratory function, whether due to conditions such as chronic obstructive pulmonary disease (COPD), acute respiratory failure, or other respiratory conditions.

By delivering pressurized air through a mask or other interface, the ventilator aids in expanding the lungs and enhancing the exchange of oxygen and carbon dioxide. This support can help maintain adequate oxygen saturation levels in the blood while minimizing the work of breathing for the patient. The goal is to improve overall respiratory mechanics and enable patients to breathe more effectively, which can alleviate symptoms and improve their quality of life.

The other options do not align with the primary functions of a NIV ventilator. While monitoring nutrient levels is essential in overall patient care, it is not a function of the ventilator. Providing respiratory support only during sleep does not encompass the full range of NIV use, as it can be employed during wakefulness as well. Lastly, reducing or eliminating the need for patient involvement contradicts the essence of NIV, which often requires patient cooperation and participation in the breathing process.