What do you tell patients is the most important risk factor for lung cancer when you are teaching about lung cancer prevention?
Correct Answer: A
Rationale: Cigarette smoking towers as lung cancer's top risk 80-90% of cases tie to its carcinogens like tar and nicotine, a dose-dependent killer dwarfing other factors. Environmental/occupational exposures like asbestos amplify risk, especially with smoking, but lack its prevalence. ETS hikes risk by 35%, significant yet secondary. Pipe or cigar smoking carries risk, less than cigarettes due to inhalation patterns. Teaching smoking as paramount drives home its preventable dominance, urging cessation as the gold-standard defense, a nurse's key message to slash lung cancer odds, backed by epidemiology and public health campaigns.
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