Noisy equipment, excessive humidity within the home and a unit older than 10 years are among the top reasons to replace your central air conditioning, according to Energy Star, a U.S. government program promoting energy efficiency.ost central air conditioning units come with two-to five-year warranties. Extended warranties can be purchased for an additional price -- usually for several hundred dollars -- and the longer the warranty, the higher the price.
The following are prognostic factors for advanced and metastatic nonâsmall cell lung cancer: 1  number of metastatic sites People with a single metastatic site have a more favourable prognosis than people who have cancer spread to several different sites.
Non-Small Cell Lung Cancer. Non-small cell lung cancer accounts for about 85 percent of lung cancers. Among them are these types of tumors: 1  Adenocarcinoma is the most common form of lung cancer in the United States among both men and women.tages of Non-Small Cell Lung Cancer. Stage I: The cancer is located only in the lungs and has not spread to any lymph nodes. Stage II: The cancer is in the lung and nearby lymph nodes. Stage III: Cancer is found in the lung and in the lymph nodes in the middle of the chest, also described as locally advanced disease.