Blood test may help identify kids’ smoke exposure: study

(Reuters) – More than half of the children who took part in a study on exposure to cigarette smoke tested positive for such exposure, despite only a handful of their parents admitting to lighting up, according to a U.S. study. Parents may think their children are exposed only if they’re around someone actively smoking a cigarette, or are unaware of where else their children may be breathing in smoke – but a blood test may help identify and reduce smoke exposure, said researchers at the University of California, San Francisco. …