A young married couple complains of being unable to conceive after 9 months of unprotected sex. The wife has normal TSH and FSH levels and a normal pelvic exam. They agree to a trial of letrozole to see if they can increase their fecundity. How does letrozole work?

A young married couple complains of being unable to conceive after 9 months of unprotected sex. The wife has normal TSH and FSH levels and a normal pelvic exam. They agree to a trial of letrozole to see if they can increase their fecundity. How does letrozole work?

A 23-year-old healthy man receives an infusion of 100~mL of glucose solution. Which of the following curves would represent his plasma insulin concentration at 2~min after infusion?

A 75-year-old man with metastatic prostate cancer is placed on leuprolide administered monthly in an intramuscular injection. This agent will act at which of the following areas on the succeeding diagram?

A diagram of the menstrual cycle in a 19-year-old woman who complains of dysmenorrhea is shown as follows. Which of the following points represents the highest level of estradiol?

A patient presents with polyuria and thirst. There appears to be no elevation of glucose in the body, however, the serum osmolality appears to be low. Upon performing the water deprivation test, the osmolatity is still low. Which of the following is true?