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Multiple Choice Quiz
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1

Which of the following statements regarding renal handling of water is correct?
A)In the absence of ADH, urine is isosmotic with plasma.
B)In the absence of ADH, water cannot be reabsorbed in the proximal tubules.
C)In the absence of ADH, the cortical collecting ducts have very low permeability to water.
D)In the presence of ADH, the late distal tubules secrete water.
E)All of the above are correct.
2

Which of the following drugs would be most effective in treating hypertension?
A)An alpha-adrenergic agonist.
B)An ADH agonist.
C)An angiotensin-converting enzyme inhibitor.
D)A stimulator of aldosterone synthesis.
E)None of the above would be effective.
3

Which of the following statements regarding renal regulation of hydrogen-ion concentration is true?
A)Renal regulation of extracellular H+ concentration is dependent upon regulating the amount of hydrogen ion filtered by the kidneys.
B)Renal regulation of extracellular H+ concentration is dependent upon regulating the amount of hydrogen ion secreted by the kidneys.
C)Renal regulation of extracellular H+ concentration is accomplished in part by regulating the amount of bicarbonate ion excreted by the kidneys.
D)Most of the H+ excreted in the urine is bound to HCO3-.
E)B and C.
4

A patient with a tumor of the parathyroid glands has very high plasma levels of parathyroid hormone. Which of the following symptoms would the patient be most likely to experience?
A)Low plasma calcium levels and decreased muscular excitability.
B)Low plasma calcium levels and increased muscular excitability.
C)Elevated plasma calcium levels and decreased muscular excitability.
D)Elevated plasma calcium levels and increased muscular excitability.
E)None of the above.
5

Movement of water out of the collecting ducts takes place by bulk flow.
A)True
B)False
6

The loss of 0.5 liter of sweat will provoke a greater sense of thirst than the loss of the same volume of blood plasma.
A)True
B)False
7

Which of the following is a basic renal process
A)glomerular filtration
B)tubular reabsorption
C)tubular secretion
D)All of the above
E)None of the above
8

Stretch receptors located in the bladder wall are important for micturition.
A)True
B)False





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