46. A 60-year-old woman has a serum calcium concentration of 7.0 mg/dL and a
serum potassium concentration of 2.8 mEq/L. Her serum parathyroid hormone (
PTH) concentration is decreased. The decreased PTH is most likely related to
a severe depletion of which of the following?
A ) Iodine
B ) Iron
C ) Magnesium
D ) Selenium
E ) Zinc
why the answer is C not E?
thanks a lot!
b*********e 发帖数: 158
2
plz see FA . the endocrine chapter . and the PTH subtitle