The nurse is caring for a client receiving ciprofloxacin (Cipro) for treatment of a urinary tract infection (UTI). The nurse will include which black box warning (BBW) in the discharge education?

A. This drug has a black box warning for causing tendon rupture: Ciprofloxacin, a fluoroquinolone, carries a black box warning regarding the increased risk of tendon rupture and tendinitis. The risk is particularly elevated in older adults, individuals taking corticosteroids, and those with kidney, heart, or lung transplants. Tendon rupture, especially of the Achilles tendon, can occur even after short courses of therapy. This serious side effect necessitates educating the client about symptoms of tendon pain or swelling and the need to discontinue the medication if these occur. B. This medication can cause thrombocytopenia: While ciprofloxacin may have some hematologic side effects, such as mild leukopenia or thrombocytopenia, this is not highlighted in the black box warning. Thrombocytopenia, or low platelet count, is a potential but relatively uncommon side effect of ciprofloxacin, and it is not a primary concern mentioned in the black box warning. Clients should still be monitored for any signs of bleeding or bruising, but it is not the most prominent risk. C. This medication can cause thromboembolic events: Thromboembolic events, such as blood clots, are not a specific concern related to ciprofloxacin use. While certain antibiotics may increase the risk of clotting in certain populations, this is not part of ciprofloxacin's known black box warnings. The primary focus of the black box warning is on the risk of tendon rupture, rather than thromboembolic issues. D. This medication can cause endometrial cancers: Endometrial cancer is not a known side effect of ciprofloxacin. This is not a condition or risk associated with the drug. Ciprofloxacin is an antibiotic used to treat infections like UTIs, and although it can cause a variety of side effects such as gastrointestinal disturbances and CNS effects, it does not have a black box warning related to cancer, particularly endometrial cancer. Therefore, this statement is incorrect.