The patient presents to the emergency department after having a metal beam fall on his head at a work site. He was wearing a helmet which broke with the impact. He was unconscious at the scene but is awake now, and his initial assessment is completely benign. Which finding upon reassessment 30 minutes later is most concerning?

At 48 hours after a bowel resection surgery for colon cancer, the colostomy is noted to be moist and purple. Which additional assessment is most important?  

A patient has been diagnosed with toxic megacolon. Which interventions are appropriate for this patient? Select all that apply.