Assessment of ventilation

Ventilation refers to the rate at which air is breathed in and out of the lungs. Alveolar ventilation is a parameter of fundamental importance, as it is the primary determinant of arterial CO₂ concentration. Arterial https://www.w3.org/1998/Math/MathML"> P CO 2 https://s3-euw1-ap-pe-df-pch-content-public-u.s3.eu-west-1.amazonaws.com/9781315382050/17ac950a-3d0f-4996-9c8a-1fe7e839b709/content/inline-math10_1.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/> is a key factor in determining arterial https://www.w3.org/1998/Math/MathML"> P O 2 https://s3-euw1-ap-pe-df-pch-content-public-u.s3.eu-west-1.amazonaws.com/9781315382050/17ac950a-3d0f-4996-9c8a-1fe7e839b709/content/inline-math10_2.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/> , making it helpful to consider CO₂ before looking at oxygenation.