The nurse is evaluating a patient's laboratory results. Based upon the laboratory findings, what results will cause the release of an antidiuretic hormone (ADH)?
A) Increased serum sodium
B) Decreased serum sodium
C) Decrease in serum osmolality
D) Decrease in thirst
Ans: A
Feedback: Increased serum sodium causes increased thirst and the release of ADH by the posterior pituitary gland. When serum osmolality decreases and thirst and ADH secretions are suppressed, the kidney excretes more water to restore normal osmolality.
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