25 year old with family history of smoking. my father died of lung cancer at the age of 47, my paternal grandpa died of acute respiratory failure at the age of 76, and my maternal grandpa died of prostate cancer at the age of 80. what and when should i te

Time to quit smoking: The hx you give includes various unrelated & common afflictions. The only one you have direct influence on is the lung cancer. Regular history review & general exam by a trusted primary care provider is where you start the process. Any testing must be targeted to the specifics of your issues at the time.

None: You are 25. Stop smoking. The damage done to your lungs to date should be minimal. If you want a baseline cxr , that can be done, but no other testing would be appropriate for you at this time with no particular symptoms listed.

Collaboration: If you smoke, you should stop. Collaborative health maintenance is critical to your health. Complete family history, personal history and physical exam should be performed by your family physician. He/she can help with healthy life choices. For screening, the following links to current guidelines: http://goo.Gl/oqvsp.