posted by pbear .
Assume that fluid enters the distal convoluted tubule with an osmolarity of 100 mOsm and that the maximum osmolarity of medullary interstitial fluid is 1100 mOsm. As plasma ADH levels rise, the osmolarity of the urine
a) approaches 300 mOsm, the normal osmolarity of plasma
b) approaches 1100 mOsm as an upper limit
c) eventually exceeds 1100 mOsm
d) approaches 100 m0sm as a lower limit
study guide question thank you