Final answer:
The nurse should identify that the client statement indicating a contraindication for administering ciprofloxacin is "I am pregnant and in my first trimester."
Step-by-step explanation:
The nurse should identify that the client statement indicating a contraindication for administering ciprofloxacin is “I am pregnant and in my first trimester.” Ciprofloxacin is classified as a category C medication by the U.S. Food and Drug Administration (FDA), which means it may have potential risks to the fetus when administered to pregnant women. It is important for the nurse to be aware of this contraindication and communicate with the prescribing physician to explore other safe alternatives for treating the urinary tract infection.