What effect would increased amounts of aldosterone have on the K+ concentration in urine?
A) It would increase the K+ concentration in urine because Na+ is retained.
B) It would decrease the K+ concentration in urine because Na+ is retained.
C) It would increase the K+ concentration in urine because Na+ is secreted with it.
D) It would decrease the K+ concentration in urine because Na+ is secreted with it.
E) It would not affect K+ concentration in the urine because Cl- is exchanged for Na+.
Answer: A
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