A nurse is receiving change-of-shift report for a group of clients. Which of the following clients should the nurse plan to assess first?

A. Sinus arrhythmia is typically not life-threatening and does not require immediate assessment unless other symptoms are present. B. Epidural analgesia can cause some weakness in the lower extremities, but this is a known side effect and not an emergency. C. Tachypnea, especially with a new onset in a client with a hip fracture, may indicate complications such as a fat embolism or pulmonary embolism, which require immediate assessment. D. An HbA1c of 7.2% is slightly above the target but is not an immediate concern compared to other acute symptoms.