What is the expected client response to the presence of antidiuretic hormone (ADH) on urine output and osmolarity?
A. Increased urine output, increased urine osmolarity
B. Increased urine output, decreased urine osmolarity
C. Decreased urine output, increased urine osmolarity
D. Decreased urine output, decreased urine osmolarity
C
Antidiuretic hormone binds to receptors in the kidney, increasing only the reabsorption of water, and increasing plasma volume while decreasing urine volume. Sodium reabsorption is not in-creased by the presence of ADH, so more sodium remains in the urine, increasing its osmolarity. The outcome of ADH influence is decreased output of urine with a higher concentration (osmo-larity).
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