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Quiz: Acid-Base Balance
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Questions in this quiz (23)
1As pH goes down, a:
- ASolution becomes more basic
- BSolution’s hydrogen ion concentration decreases
- CSolution becomes more acidic
- DSolution thickens
2Blood is slightly alkaline:
- ATrue
- BFalse
3The respiratory and urinary systems can serve as physiologic buffer systems:
- ATrue
- BFalse
4Acidosis causes:
- AHyperventilation
- BHypoventilation
- CAn increase in blood pH
- DIncrease in K+ excretion
5Respiratory mechanisms are much more effective in expelling hydrogen ions than are urinary mechanisms:
- ATrue
- BFalse
6Which of the following organs is considered the most effective regulator of blood carbonic acid levels:
- AKidneys
- BIntestines
- CLungs
- DStomach
7In renal compensation of acidosis:
- AH+ secretion increases; bicarbonate reabsorption increases
- BH+ secretion increases; bicarbonate reabsorption decreases
- CH+ secretion decreases; bicarbonate secretion increases
- DH+ secretion decreases; bicarbonate reabsorption increases
8Which of the following accept H+ in water:
- AAcids
- BBases
- CSalts
- DSugars
9Maintenance of body fluid pH is the result of:
- AOperation of various buffer systems
- BResponse of respiratory system
- CResponse of urinary system
- DAll of the above
10When normal buffer mechanisms are stressed by excessive numbers of H+ ions, which of the following will result:
- AAcidosis
- BAlkalosis
- CNeither of these
11With each expiration, which substances leave the body?
- Aa. CO2
- Bb. H2O
- Cc. O2
- Dd. Both a and b
12Which of the following substances releases H+ in water
- AAcids
- BBases
- CSalts
- DSugars
13Which of the following is NOT a buffer system:
- ABicarbonate buffer system
- BPhosphate buffer system
- CProtein buffer system
- DNaCl buffer system
14A falling blood pH and a rising concentration of carbon dioxide, both due to emphysema indicate
- AAcidosis
- BAlkalosis
- CNeither of these
15Carbon dioxide present In venous blood causes it to become slightly more basic than arterial blood
- ATrue
- BFalse
16Chemical buffers are fast acting
- ATrue
- BFalse
17An increase in blood pH above normal (alkalosis) causes hypoventilation
- ATrue
- BFalse
18What happens as blood flows through lung capillaries
- ACarbon dioxide in blood decreases
- BH+ in blood decreases
- CpH decreases
- Dall of these
19Substances that are present in the plasma that prevent drastic changes in pH of body fluids
- ABuffers
- BInhibitors
- CAccelerators
- DActivators
20High CO2 levels in body fluids will result in the formation of carbonic acid as CO2 readily reacts with
- Aoxygen
- Bwater
- Ccarbonic acid
- Dcarbon monoxide
- Esodium chloride
21Which of the following describes the pH of blood
- A7.21-7.49
- B7.00-7.20
- C7.35-7.45
- D7.50-7.77
22Mr. B’s plasma pH is determined to be 7.2. Which of the following might you expect to observe indicating compensation is occurring:
- AAn increase in respiration rate
- BA decrease in respiration rate
- CNo change in respiration rate
23If the H+ concentration of blood increases, bicarbonate ions in the plasma act as buffers by:
- ARemoving excess H+ from plasma
- BReleasing H+ into plasma
- CCombining with Cl- ions
- DNone of the above
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- Lecture Quiz and Exam
- Author
- Alexandra Bozan
- Language
- English
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- 191
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