A 56-year-old man with a known history of hyperlipidemia and coronary artery disease on simvastatin develops chest pain while golfing (usually 4d\wk ). His weight is 75~kg. He is brought to the emergency department, is found to be asystolic, and dies. His most recent serum cholesterol level was in the normal range. Which of the following statements is true?

A 56-year-old man with a known history of hyperlipidemia and coronary artery disease on simvastatin develops chest pain while golfing (usually 4d\wk ). His weight is 75~kg. He is brought to the emergency department, is found to be asystolic, and dies. His most recent serum cholesterol level was in the normal range. Which of the following statements is true?

A 42-year-old man with a history of diabetes mellitus on metformin is going to have a CT scan of the abdomen with contrast to evaluate his chronic right lower quadrant pain. Which of the following statements about his metformin and this radiographic study is correct?

A 65-year-old woman with postmenopausal atrophy and hot flashes is prescribed with estrogen therapy by her primary care physician. She has a family history of endometrial cancer and is concerned about her risk for this condition. Which of the following statements is true?

A 38-year-old woman on oral contraceptives for 18 years thinks that this preparation may prove to be not only beneficial in preventing pregnancy but also beneficial in reduction of cancer risk. Which of the following cancers may show a decreased incidence because of her prolonged use of oral contraceptives?

A 66-year-old woman with a history of Cushing's disease treated with oral glucocorticoids presents to her primary care physician for follow-up. She was recently hospitalized for a hip fracture following a fall. What is the most likely mechanism for hip fracture in this patient?