Question 1

An increase in parathyroid hormone levels results in

Accepted Answer

A)   increased rate of bone resorption.
B)   increased rate of vitamin D degradation.
C)   increased concentration of potassium ions in the urine.
D)   increased rate of calcium ion excretion by the kidneys.
E)   decreased levels of blood calcium.

Question 2

Decreased extracellular potassium levels cause

Accepted Answer

A)   cells to become more excitable.
B)   hyperpolarization of cell membranes.
C)   more action potentials to be generated.
D)   increased permeability of cell membranes.
E)   hypopolarization of cell membranes.

Question 3

A decrease in plasma osmolality would increase

Accepted Answer

A)   ADH production.
B)   plasma sodium levels.
C)   renin production.
D)   urine production.
E)   thirst.

Question 4

The increase in extracellular osmolality would cause

Accepted Answer

A)   water to move out of the cells.
B)   water to move into the cells.
C)   no change in the net movement of water into or out of the cells.

Question 5

The sensation of thirst results from

Accepted Answer

A)   an increase in the plasma volume.
B)   hypertension (increased blood pressure) .
C)   stimulation of osmoreceptor cells in the hypothalamus.
D)   a decrease in the osmolality of the extracellular fluid.
E)   stimulation of baroreceptors.

Question 6

Receptors sensitive to changes in the osmolality of extracellular fluid are the

Accepted Answer

A)   baroreceptors.
B)   chemoreceptors.
C)   osmoreceptors.
D)   pressoreceptors.
E)   proprioreceptors.

Question 7

When aldosterone is absent, sodium reabsorption in the nephron is

Accepted Answer

A)   greatly increased.
B)   greatly decreased.
C)   unchanged.

Question 8

Indicate which acid-base imbalance is most likely to occur as a result of the condition described.
-prolonged diarrhea resulting in excessive loss of bicarbonate

Accepted Answer

A)  respiratory acidosis
B)  respiratory alkalosis
C)  metabolic acidosis
D)  metabolic alkalosis

Question 9

A falling blood pH and a rising concentration of carbon dioxide due to emphysema, indicate

Accepted Answer

A)   metabolic acidosis.
B)   metabolic alkalosis.
C)   respiratory acidosis.
D)   respiratory alkalosis.
E)   None of these choices is correct.

Question 10

When normal buffer mechanisms are overwhelmed by excessive numbers of hydrogen ions, which of the following will result?

Accepted Answer

A)   acidosis
B)   alkalosis
C)   neither of these

Question 11

2 from lungs D)  capillary E)  decreased pH" class="answers-bank-image d-inline" rel="preload" >
-The diagram illustrates respiratory control of blood pH. What does "E" represent?

Accepted Answer

A)   respiratory control centers in brainstem
B)   increased respiration and depth
C)   increased CO2 from lungs
D)   capillary
E)   decreased pH

Question 12

Use the following key to choose the best answer.
-(1)  the percent adult weight that is water; (2)  the percent of body weight that is water in a child

Accepted Answer

A)  Choose this if the first item is greater than the second item.
B)  Choose this if the first item is less than the second item.
C)  Choose this if the first item is equal or nearly equal to the second item.

Question 13

Which of the following will the body begin to do in order to compensate for hyperkalemia?

Accepted Answer

A)   vasoconstriction of blood vessels
B)   increase ADH secretion
C)   decrease aldosterone secretion
D)   increase the release of atrial natriuretic hormone
E)   increase aldosterone secretion

Exam 27: Water, Electrolytes, and Acidbase Balance

Which of the following will the body begin to do in order to compensate for hyperkalemia?

Correct Answer
verified

Indicate which acid-base imbalance is most likely to occur as a result of the condition described. -prolonged diarrhea resulting in excessive loss of bicarbonate

Correct Answer
verified

Decreased extracellular potassium levels cause

Correct Answer
verified

A decrease in plasma osmolality would increase

Correct Answer
verified

When aldosterone is absent, sodium reabsorption in the nephron is

Correct Answer
verified

-The diagram illustrates respiratory control of blood pH. What does "E" represent?

Correct Answer
verified

When normal buffer mechanisms are overwhelmed by excessive numbers of hydrogen ions, which of the following will result?

Correct Answer
verified

The increase in extracellular osmolality would cause

Correct Answer
verified

The sensation of thirst results from

Correct Answer
verified

Receptors sensitive to changes in the osmolality of extracellular fluid are the

Correct Answer
verified

An increase in parathyroid hormone levels results in

Correct Answer
verified

A falling blood pH and a rising concentration of carbon dioxide due to emphysema, indicate

Correct Answer
verified

Use the following key to choose the best answer. -(1) the percent adult weight that is water; (2) the percent of body weight that is water in a child

Correct Answer
verified

Exam 27: Water, Electrolytes, and Acidbase Balance

Which of the following will the body begin to do in order to compensate for hyperkalemia?

Correct AnswerverifiedShow Answer

Indicate which acid-base imbalance is most likely to occur as a result of the condition described. -prolonged diarrhea resulting in excessive loss of bicarbonate

Correct AnswerverifiedShow Answer

Decreased extracellular potassium levels cause

Correct AnswerverifiedShow Answer

A decrease in plasma osmolality would increase

Correct AnswerverifiedShow Answer

When aldosterone is absent, sodium reabsorption in the nephron is

Correct AnswerverifiedShow Answer

-The diagram illustrates respiratory control of blood pH. What does "E" represent?

Correct AnswerverifiedShow Answer

When normal buffer mechanisms are overwhelmed by excessive numbers of hydrogen ions, which of the following will result?

Correct AnswerverifiedShow Answer

The increase in extracellular osmolality would cause

Correct AnswerverifiedShow Answer

The sensation of thirst results from

Correct AnswerverifiedShow Answer

Receptors sensitive to changes in the osmolality of extracellular fluid are the

Correct AnswerverifiedShow Answer

An increase in parathyroid hormone levels results in

Correct AnswerverifiedShow Answer

A falling blood pH and a rising concentration of carbon dioxide due to emphysema, indicate

Correct AnswerverifiedShow Answer

Use the following key to choose the best answer. -(1) the percent adult weight that is water; (2) the percent of body weight that is water in a child

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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