Systemic venous PO₂ is ____ alveolar PO₂ , and systemic venous PCO₂ is ____ alveolar PCO₂ . A) greater than, greater than. B) greater than, less than. C) less than, greater than. D) less than, less than. E) equal to, equal to.

Question

Quizplus · Accepted Answer

Systemic venous blood contains deoxygenated blood that is returning from the body tissues back to the heart. This blood has a lower oxygen concentration and a higher carbon dioxide concentration compared to alveolar blood. Therefore, systemic venous PO₂ is less than alveolar PO₂, and systemic venous PCO₂ is greater than alveolar PCO₂. Hence, option C is the correct choice.

Systemic Venous PO2 Is ____ Alveolar PO2 , and Systemic

Systemic Venous PO₂ Is ____ Alveolar PO₂ , and Systemic