In this EM Quick Hits podcast: Anand Swaminathan on limitations and practical tips on intraosseus access,Tahara Bhate QI corner on missed ectopic pregnancy, Sarah Reid from EM Cases Summit on oxygen saturation monitoring in bronchiolitis and management of infant gastro-esophageal reflux, Brit Long on the value of rectal exam in diagnosis of cauda equina syndrome, Hans Rosenberg & Ariel Hendin on withdrawal of life-sustaining care in the ED...