Final answer:
The nurse will most likely administer IV fluids to the dehydrated client with a blood pressure of 102/56 to restore fluid balance and prevent complications such as circulatory shock.
Step-by-step explanation:
The urgent care clinic nurse will likely anticipate administering intravenous (IV) fluids to a 24-year-old client who is dehydrated after a long run and has a blood pressure reading of 102/56. Dehydration can lead to reduced blood volume and hypotension, as evidenced by the client's lower-than-normal blood pressure. IV fluids will help restore the client's fluid levels, improve blood pressure, and prevent further dehydration-related complications such as circulatory shock. Monitoring the client's vital signs closely and reassessing their hydration status after treatment are also integral steps in their care.