A nurse is teaching a client who is beginning highly active antiretroviral therapy (HAART) for HIV which includes zidovudine. The nurse should include teaching regarding which black box warning associated with this medication?

A. Lactic acidosis: Zidovudine has a black box warning for lactic acidosis, a rare but serious complication that can be life-threatening. The nurse should educate the client about symptoms of lactic acidosis, such as muscle pain and weakness. B. Uterine Cancer: Zidovudine is not associated with uterine cancer. C. Oral Candidiasis: This is not a black box warning for zidovudine, though oral candidiasis can occur in immunocompromised clients. D. Thromboembolic Events: This is not a known black box warning for zidovudine.