In an emergency department, a nurse is presented with four clients. Which client should the nurse prioritize based on the ABCDE approach?

Choice A reason: A headache following a stressful day suggests a tension headache, which is typically benign and not life-threatening. The ABCDE approach prioritizes airway, breathing, circulation, disability, and exposure, focusing on immediate threats. A headache does not compromise these critical systems acutely, making it a lower priority compared to conditions affecting vital functions like sepsis. Choice B reason: A minor laceration on the arm is a superficial injury that may cause bleeding but is unlikely to be life-threatening unless uncontrolled or infected. The ABCDE approach would assess for significant hemorrhage under circulation, but a minor laceration typically does not impair airway, breathing, or neurological status, placing it lower in priority than sepsis with altered mental status. Choice C reason: Suspected sepsis with altered mental status is a medical emergency. Sepsis involves systemic infection leading to organ dysfunction, with altered mental status indicating neurological compromise (disability in ABCDE). This suggests possible cerebral hypoperfusion or septic encephalopathy, requiring urgent intervention to stabilize circulation and prevent multi-organ failure, making this the highest priority. Choice D reason: A sprained ankle is a musculoskeletal injury causing pain and swelling but does not typically affect airway, breathing, circulation, or neurological status in the ABCDE framework. It is a stable condition requiring supportive care like rest and ice, not immediate intervention, making it a lower priority compared to life-threatening conditions like sepsis.