A patient had a surgical procedure that necessitated a thoracic incision. The nurse anticipates that he will have a higher risk for postoperative complications involving which body system? a....

A patient had a surgical procedure that necessitated a thoracic
incision. The nurse anticipates that he will have a higher
risk for postoperative complications involving which body
system?
a. Respiratory system
b. Circulatory system
c. Digestive system
d. Nervous system