A nurse is assigned to care for a group of clients and is prioritizing their care. Which client should be the nurse's priority?

Choice A reason: A laceration on the sole of the foot requires wound care and possible infection prevention, but it is not immediately life-threatening compared to impaired oxygenation. Choice B reason: A pulse oximetry level of 89% indicates hypoxemia, which is a critical finding. Oxygen saturation below 90% means tissues are not receiving adequate oxygen, and this requires immediate intervention to prevent respiratory failure or organ damage. This makes it the highest priority. Choice C reason: Post-operative pain rated 7 out of 10 is significant and requires management, but pain does not take precedence over impaired oxygenation. Pain control can be addressed after stabilizing life-threatening issues. Choice D reason: New onset of anxiety is concerning but not immediately life-threatening. It can be addressed after urgent physiological needs are stabilized.