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Question 13A 51-year-old female patient has been receiving doxorubicin (Adriamycin) for metastatic breast cancer. Her medical record indicates she has cardiomyopathy and a cumulative dose of 300 mg/m2 of doxorubicin. Which of the following measures would help limit the severity of the cardiomyopathy in this patient?A reduced doseMeticulous monitoring during drug administrationThe use of dexrazoxane in conjunction with doxorubicinA single large dose instead of multiple doses