Question

When it comes to alveolar ventilation rate, does high alveolar ventilation rate mean a higher PO2 in the blood leaving the lungs?

Answer 1

ANSWER: Yes the statement is correct

RATIONAL: Alveolar ventilation rate is the amount of oxygen comes from the surroundings which means from the atmosphere will goes to the lungs of the alveoli and the carbon dioxide from the cappilary bed of the alveoli will expelled out by exhalation.

Po2 means amount of the oxygen which is mixed with the bloodstream this process will happens in the alveoli of the lungs.

so, The Increased alveolar ventilation rate will leads to consumption of more oxygen to the lungs, when there are more amount of oxygen the alveoli expelled out the carbon dioxide and more amount of oxygen will be mixed to the blood which is leaving from the lungs and goes to the heart through pulmonary veins and supplies the human body with oxygenated blood.