Choose either

a) Hypoventilation
b) V/Q Mismatch


1) Pt is breathing room air has a PaCO2 of 76, a PAO2 of 55 and a PaO2 of 45.

2) Pt is ventilated and has a PaCO2 of 62 and an ETCO2 of 28with a PaO2 of 50.

show your work.