A new drug has been shown to block epithelial sodium channels in the cortical collecting duct. Which of the following is most likely to be decreased upon drug administration?
AUrea reabsorption in the collecting tubules
BHydrogen ion secretion in the collecting tubules
CPotassium secretion in the collecting tubules
DSodium secretion in the collecting tubules
ESodium chloride reabsorption in the distal tubule
Which hormone's secretion is primarily stimulated by increased plasma osmolality?
AEPO
BPTH
CADH
DAldosterone
EANP
A 29-year-old patient presents to her primary care physician with persistent amenorrhea and inability to breastfeed over the last 5 months. She says that she has also been very tired since her baby was born and this fatigue was accompanied by an inability to deal with cold weather despite having no problem with cold prior to becoming pregnant. She has gained an additional 5 pounds since delivery. Review of her hospital records reveals that she had a vaginal delivery that was complicated by severe hemorrhage and episodes of hypotension. Which of the following hormone levels is most likely to be normal in this patient?
AThyroid hormone
BCortisol
CAldosterone
DFollicle-stimulating hormone (FSH)
EProlactin
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