A 45-year-old woman has a blood pressure of 140/90 mm Hg. Her doctor recommends a low-salt diet. What would you predict her serum [Na+] and ECF volume would be compared with their values on her previous diet?
(Note: Assume she has reached a new steady state on her new diet.)
Serum [Na+] ECF volume
A. No change ?
B. No change No change
C. No change ?
D. ? No change
E. ? ?
ANS: A
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