A young married couple has been unable to conceive after 3 years of unprotected intercourse. The husband's sperm count is normal. They both agree that they would like the wife to undergo fertility treatment. Which of the following drugs has the ability to either stimulate or inhibit ovulation depending only on the dosing schedule?

A young married couple has been unable to conceive after 3 years of unprotected intercourse. The husband's sperm count is normal. They both agree that they would like the wife to undergo fertility treatment. Which of the following drugs has the ability to either stimulate or inhibit ovulation depending only on the dosing schedule?

A 29-year-old man is found to have primary pulmonary hypertension while undergoing a workup for shortness of breath and fatigue. A defect in his BMPR2 gene is discovered. This gene product normally inhibits smooth muscle proliferation. Which of the following drugs would best help this patient?

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 45-year-old man with insulin-dependent diabetes mellitus on insulin injection decides that he wants to 'drink' the insulin instead of taking the injection form. He is tired of the pain he gets during the injections. Which of the following is the most likely sequelae of this action?

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?