EVERYDAY SCIENCE

SCIENCE

ZOOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The alveolar po2 is
A
a 104 mm Hg
B
b 120 mm Hg
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -1) PO2 in alveoli is 104 mmHg vs. 40 mmHg for the deoxygenated blood of the pulmonary arteries. So after . 25 seconds, equilibrium is reached.

Detailed explanation-2: -At sea level, the alveolar PAO2 is: PaO2 = (760-47) 0.21-40/0.8 = 99.7 mm Hg.

Detailed explanation-3: -The alveolar gas equation is used to calculate alveolar oxygen partial pressure: PAO2 = (Patm-PH2O) FiO2-PACO2 / RQ.

There is 1 question to complete.