Which of the following is MOST likely to cause polyuria (excessive passing of urine)?
Decreased GFR (glomerular filtration rate)
Over secretion of aldosterone
Decrease amounts of ADH
Activation of angiotensinogen
The Correct Answer is C
A. Decreased GFR (glomerular filtration rate): A low GFR would reduce urine output, not increase it.
B. Over secretion of aldosterone: Aldosterone promotes sodium and water reabsorption, which decreases urine output.
C. Decrease amounts of ADH: Antidiuretic hormone (ADH) helps retain water. A deficiency leads to diuresis, causing polyuria (as seen in diabetes insipidus).
D. Activation of angiotensinogen: This leads to vasoconstriction and aldosterone release, promoting water retention, not polyuria.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Gallbladder: The gallbladder stores and concentrates bile but does not produce it.
B. Spleen: The spleen is part of the immune system and blood filtration, not digestion.
C. Liver: The liver produces bile, which helps emulsify fats during digestion.
D. Pancreas: The pancreas produces digestive enzymes and insulin, not bile.
Correct Answer is A
Explanation
A. Storage: The urinary bladder’s primary function is to store urine until it is excreted during urination.
B. Filtration: Filtration occurs in the glomeruli of the kidneys, not in the bladder.
C. Reabsorption: Reabsorption happens in the renal tubules after filtration in the kidneys.
D. Buffering of H+: Buffering of hydrogen ions occurs in the kidneys and blood, not in the bladder.
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