A nurse has just received hand-off communication at the start of their shift. After reviewing each client's status, which of the following clients should the nurse see first?

Rationale: A. This client is at highest risk due to potential airway obstruction from aspiration. Continued coughing and an oxygen saturation of 91% indicate compromised respiratory function, requiring immediate assessment and possible intervention. B. This adolescent is stable, experiencing minimal pain, and preparing for discharge. C. This child used a rescue inhaler 16 hours ago, indicating the asthma exacerbation is likely controlled at this time. D. This infant is showing signs of recovery from dehydration with adequate intake and urine output, making them stable.