Question

Question 11 (Mandatory) (1 point) When looking at ALVEOLAR VENTILATION, which statement describes a normal, healthy adult the alveolar ventilation rate is NOT related to the patient's ability to exchange gas O physiological dead space is greater than anatomical dead space the sum of dead air is zero physiological dead space is equal to anatomical dead space

Answer 1

Physiological dead space is equal to anatomical dead space.

Alveolar ventilation is the amount of gas which reaches the alveoli during a breath. Dead space is the portion of each tidal volume which is not involved in gas exchange. There are two different ways to define dead space-- anatomic and physiologic. In a normal healthy individual the anatomic and physiologic dead space are equal as all the alveoli are functional and well perfused in the normal lung. However, in a variety of disease states, the physiologic dead space may be 10 times the volume of the anatomic dead space.