TMC Practice Questions

Question 1

Total Arterial O2 Content (CaO2)

Answer 1

CaO2 = (1.34 x Hb x SaO2) + (PaO2 x 0.003)

Question 2

Total Venous O2 Content (CvO2)

Answer 2

CvO2 = (1.34 x Hb x SvO2) + (PvO2 x 0.003)

Question 3

Oxygen Consumption (VO2)

Answer 3

VO2 = QT x C(a – v)O2 x 10

Question 4

Deadspace to Tidal Volume Ratio (Vd/Vt Ratio)

Answer 4

Vd/Vt = (PaCO2 – PetCO2)/PaCO2