Multiple Choice
The reason glucose is detected in the urine of individuals with uncontrolled diabetes mellitus is that __________.
25. The Urinary System
Renal Physiology Step 2: Tubular Reabsorption
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When the concentration of ADH increases, __________.
A
less water is reabsorbed by the nephron and collecting duct
B
less urine is produced
C
more salt is secreted by the nephron
D
the specific gravity of the urine decreases
E
blood volume decreases
Verified step by step guidance1
Understand the role of Antidiuretic Hormone (ADH): ADH is a hormone that helps regulate water balance in the body by controlling the amount of water reabsorbed by the kidneys.
Recognize the effect of increased ADH: When ADH levels increase, the permeability of the nephron's collecting ducts to water increases, leading to more water being reabsorbed back into the bloodstream.
Consider the impact on urine production: With more water being reabsorbed, less water is excreted as urine, resulting in a decrease in urine volume.
Analyze the effect on urine concentration: As less water is excreted, the urine becomes more concentrated, which means the specific gravity of the urine increases, not decreases.
Evaluate the effect on blood volume: Since more water is reabsorbed into the bloodstream, blood volume increases, not decreases.
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