Alexandra Bozan
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Alexandra Bozan
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Quiz: Acid-Base Balance

Quiz: Acid-Base Balance

Question 1 of 23

1

As pH goes down, a:

Select one of the following:

  • Solution becomes more basic

  • Solution’s hydrogen ion concentration decreases

  • Solution becomes more acidic

  • Solution thickens

Explanation

Question 2 of 23

1

Blood is slightly alkaline:

Select one of the following:

  • True
  • False

Explanation

Question 3 of 23

1

The respiratory and urinary systems can serve as physiologic buffer systems:

Select one of the following:

  • True
  • False

Explanation

Question 4 of 23

1

Acidosis causes:

Select one of the following:

  • Hyperventilation

  • Hypoventilation

  • An increase in blood pH

  • Increase in K+ excretion

Explanation

Question 5 of 23

1

Respiratory mechanisms are much more effective in expelling hydrogen ions than are urinary mechanisms:

Select one of the following:

  • True
  • False

Explanation

Question 6 of 23

1

Which of the following organs is considered the most effective regulator of blood carbonic acid levels:

Select one of the following:

  • Kidneys

  • Intestines

  • Lungs

  • Stomach

Explanation

Question 7 of 23

1

In renal compensation of acidosis:

Select one of the following:

  • H+ secretion increases; bicarbonate reabsorption increases

  • H+ secretion increases; bicarbonate reabsorption decreases

  • H+ secretion decreases; bicarbonate secretion increases

  • H+ secretion decreases; bicarbonate reabsorption increases

Explanation

Question 8 of 23

1

Which of the following accept H+ in water:

Select one of the following:

  • Acids

  • Bases

  • Salts

  • Sugars

Explanation

Question 9 of 23

1

Maintenance of body fluid pH is the result of:

Select one of the following:

  • Operation of various buffer systems

  • Response of respiratory system

  • Response of urinary system

  • All of the above

Explanation

Question 10 of 23

1

When normal buffer mechanisms are stressed by excessive numbers of H+ ions, which of the following will result:

Select one of the following:

  • Acidosis

  • Alkalosis

  • Neither of these

Explanation

Question 11 of 23

1

With each expiration, which substances leave the body?

Select one of the following:

  • a. CO2

  • b. H2O

  • c. O2

  • d. Both a and b

Explanation

Question 12 of 23

1

Which of the following substances releases H+ in water

Select one of the following:

  • Acids

  • Bases

  • Salts

  • Sugars

Explanation

Question 13 of 23

1

Which of the following is NOT a buffer system:

Select one of the following:

  • Bicarbonate buffer system

  • Phosphate buffer system

  • Protein buffer system

  • NaCl buffer system

Explanation

Question 14 of 23

1

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

Select one of the following:

  • Acidosis

  • Alkalosis

  • Neither of these

Explanation

Question 15 of 23

1

Carbon dioxide present In venous blood causes it to become slightly more basic than arterial blood

Select one of the following:

  • True
  • False

Explanation

Question 16 of 23

1

Chemical buffers are fast acting

Select one of the following:

  • True
  • False

Explanation

Question 17 of 23

1

An increase in blood pH above normal (alkalosis) causes hypoventilation

Select one of the following:

  • True
  • False

Explanation

Question 18 of 23

1

What happens as blood flows through lung capillaries

Select one of the following:

  • Carbon dioxide in blood decreases

  • H+ in blood decreases

  • pH decreases

  • all of these

Explanation

Question 19 of 23

1

Substances that are present in the plasma that prevent drastic changes in pH of body fluids

Select one of the following:

  • Buffers

  • Inhibitors

  • Accelerators

  • Activators

Explanation

Question 20 of 23

1

High CO2 levels in body fluids will result in the formation of carbonic acid as CO2 readily reacts with

Select one of the following:

  • oxygen

  • water

  • carbonic acid

  • carbon monoxide

  • sodium chloride

Explanation

Question 21 of 23

1

Which of the following describes the pH of blood

Select one of the following:

  • 7.21-7.49

  • 7.00-7.20

  • 7.35-7.45

  • 7.50-7.77

Explanation

Question 22 of 23

1

Mr. B’s plasma pH is determined to be 7.2. Which of the following might you expect to observe indicating compensation is occurring:

Select one of the following:

  • An increase in respiration rate

  • A decrease in respiration rate

  • No change in respiration rate

Explanation

Question 23 of 23

1

If the H+ concentration of blood increases, bicarbonate ions in the plasma act as buffers by:

Select one of the following:

  • Removing excess H+ from plasma

  • Releasing H+ into plasma

  • Combining with Cl- ions

  • None of the above

Explanation

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