What factor increases the risk of developing postoperative pulmonary complications in a client undergoing lobectomy?

The factor that increases the risk of developing postoperative pulmonary complications in a client undergoing lobectomy is related to their overall physical condition, specifically the body mass index and weight relative to height. A client with a height of 5 feet, 7 inches and a weight of 110 pounds has a body mass index that places them in a lower weight category. Low body weight can be indicative of malnutrition or poor overall health, both of which can compromise pulmonary function and increase the likelihood of complications following surgery.

In contrast, age can be a risk factor; while being 58 years of age does correlate with some increased risk due to physiological changes with aging, it is not as directly impactful on pulmonary complications as weight and nutritional status. Furthermore, the ability to ambulate and climb stairs without dyspnea suggests a certain level of functional ability and respiratory health, which typically would be protective rather than a risk factor. The emotional aspect of keeping feelings to oneself, while it may affect overall health, does not have a direct correlation with the risk of physical complications like pulmonary issues after surgery.