Final answer:
Patients with emphysema typically have decreased vital capacity, increased inspiratory capacity, increased residual volume, and decreased forced expiratory volume.
Step-by-step explanation:
Patients with emphysema usually show a decrease in vital capacity and an increase in inspiratory capacity, as well as an increase in residual volume and a decrease in forced expiratory volume. These changes are due to the loss of lung elasticity and damage to the air sacs in the lungs.