Hyoxemia from V/Q mismatch

Question 1

Determine PO2 of airway (mixed alveolar gas)

Answer 1

P= (P1V1 +P2V2)/(V1+V2)

Question 2

Determine O2 content in mixed blood

Answer 2

C= (C1Q1+C2Q2)/(Q1+Q2)

Question 3

After determining, O2 content, to determine PO2 of mixed venous blood:

Answer 3

Go to O2 dissociation curve with mixed O2 content

Question 4

Afterwards:

Answer 4

Compare A-a (should be 10)