A coworker of mine died of mesothelioma suddenly she had respiratory problems diagnosed at autopsy work in an office what can I do for detectiion?

See your doctor. See your doctor. Discuss any risk factors you may have. Mesothelioma is most common in people who smoke and are exposed to asbestos.
Don't worry. It is unlikely you got exposure to asbestos at your workplace. However you can ask the building owner if there ever was any asbestos in the building. Most newer ones do not. If you are very worried you can get a chest xray read by a special b reader who is specially qualified to look at chest xrays. Ask your doctor about this. It may cost you some more money for the expertise.