The partial pressures (in mm Hg) of oxygen (O2) and carbon dioxide (CO2) at alveoli (the site of diffusion) are:
pO2 = 104 and pCO2 = 40
pO2 = 40 and pCO2 = 45
pO2 = 95 and pCO2 = 40
pO2 = 159 and pCO2 = 0.3
Join thousands of students and practice with AI-generated mock tests.