Which hormone promotes the resorption of water at the renal distal convoluted tubule

Which hormone promotes the resorption of water at the renal distal convoluted tubule

A 37-year-old woman with hyperlipidemia is taking a drug to lower her triglyceride and blood cholesterol levels. She is considering stopping her therapy, however, because of a red, itchy rash on her face and neck that occurs following some doses. Which drug is she taking?

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 59-year-old man with long-standing hypertension presents to his primary care physician for a follow-up visit and guidance. His blood pressure is 160 / 80~mm \Hg. His current medications include a calcium channel blocker. He is now switched to losartan. Which of the following properties of this medication can limit its efficacy for this patient?

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?