A 67-year-old woman with advanced bladder cancer comes to the physician for a follow-up examination. She is currently undergoing chemotherapy with an agent that forms cross-links between DNA strands. Serum studies show a creatinine concentration of 2.1 mg/dL and a blood urea nitrogen concentration of 30 mg/dL. Urine dipstick of a clean-catch midstream specimen shows 2+ protein and 1+ glucose. Prior to initiation of chemotherapy, her laboratory values were within the reference range. In addition to hydration, administration of which of the following would most likely have prevented this patient's current condition?
ALeucovorin
BAmifostine
CAprepitant
DMesna
ERasburicase
A 72-year-old man has been recently diagnosed with stage 3 squamous cell carcinoma of the oral cavity. After the necessary laboratory workup, concurrent chemoradiation therapy has been planned. Radiation therapy is planned to take place over 7 weeks and he will receive radiation doses daily, Monday–Friday, in 2.0 Gy fractions. For concurrent chemotherapy, he will receive intravenous cisplatin at a dosage of 50 mg/m2 weekly for 7 weeks. Which of the following best explains the mechanism of action of the antineoplastic drug that the patient will receive?
AFree radical-mediated lipid peroxidation
BInhibition of polymerization of tubulin
CInhibition of topoisomerase 1
DInhibition of topoisomerase 2
EFormation of interstrand DNA cross-links
A 60-year-old female presents to her primary care physician complaining of bloating and fatigue over the past year. On examination, she has abdominal distension and ascites. Abdominal imaging reveals a mass-like lesion affecting the left ovary. A biopsy of the lesion demonstrates serous cystadenocarcinoma. She is subsequently started on a chemotherapeutic medication known to stabilize polymerized microtubules. Which of the following complications should this patient be monitored for following initiation of this medication?
APeripheral neuropathy
BPulmonary fibrosis
CAcoustic nerve damage
DHemorrhagic cystitis
ECardiotoxicity
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