Emily Grewe-Nelson, D.O., of Utica Park Clinic talks with KJRH Ch. 2 about the importance of properly functioning carbon monoxide detectors during the dangerously cold winter temperatures. “It may be hitting Oklahomans off-guard, a bit, because we’re not so used to hearing ‘check your carbon monoxide detectors, make sure you have carbon monoxide detectors’ until we get into a winter storm like this,” Grewe-Nelson said.