V/Q ratio ~0.8 optimises gas exchange. Mismatch: dead space (high V/Q, PE) or shunt (low V/Q, pneumonia). Hypoxic pulmonary vasoconstriction redirects blood.
V/Q ratio ~0.8 optimises gas exchange. Mismatch: dead space (high V/Q, PE) or shunt (low V/Q, pneumonia). Hypoxic pulmonary vasoconstriction redirects blood.