Which of the following is caused by lack of ADH, causing low blood volume?
Over secretion of ACTH
Polyuria
Tetany
Cushing syndrome
The Correct Answer is B
A. Over secretion of ACTH: ACTH stimulates cortisol release, not related to ADH.
B. Polyuria: Without ADH, kidneys cannot reabsorb water, leading to excessive urination.
C. Tetany: Tetany results from low calcium, not ADH deficiency.
D. Cushing syndrome: Caused by excess cortisol, not related to ADH.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Causes Na+ and water reabsorption:
Aldosterone increases sodium (and water) reabsorption in the kidneys, which raises blood volume and pressure.
B. Depletes blood volume:
Aldosterone helps increase blood volume.
C. Causes K+ reabsorption:
Aldosterone promotes potassium excretion, not reabsorption.
D. Cause Na+ excretion:
Aldosterone causes sodium retention, not excretion.
Correct Answer is B
Explanation
A. Causes the release of ADH: ADH reduces urination by promoting water reabsorption.
B. Blocks the reabsorption of Na+: Most diuretics act by preventing sodium reabsorption, which in turn prevents water reabsorption, increasing urine output.
C. Activates the renin-angiotensin-aldosterone system: This system conserves fluid and reduces urination.
D. Decreases GFR: Decreasing GFR reduces urine production.
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