Trick of the Trade: OKN drum to test psychogenic coma
Occasionally, emergency physicians see patients who present because they are unresponsive despite normal vital signs and an otherwise normal exam. You detect no drugs or alcohol on board. You suspect a psychiatric or malingering etiology, but aren’t sure. They seem non-responsive to voice and minimally responsive to very painful stimuli. Is this a case of psychogenic coma or true coma (with bilateral hemispheric dysfunction)?
What test can you do to reassure yourself that this may indeed be psychogenic coma?
When I did my residency training in Emergency Medicine and in the first few years as an attending, we regularly performed diagnostic peritoneal lavages in patients with stab wounds injuries to the abdomen. Patients also routinely went to the operating room for exploration.
Burn classification and management are key skills for ED providers to remember. Depending on the prevalence of burns in your ED, it may be hard for forget the details. So here is a PV reference card on the rule of 9’s, different classifications of burns, and indications for burn unit referral.
Appendicitis is a common presentation in the Emergency Department. Dilemmas arise when deciding whether to image patients with equivocal symptoms and WBC lab results. Given the risk of ionizing radiation with CT scans, we should ideally minimize the number of CT scans ordered in these patients without mistakenly sending patients home with an early appendicitis. A perforated appendix places the patient at risk for bowel obstruction, infertility (in women), and sepsis.