Question 1
Question
The most abundant extracellular cation is
Question 2
Question
Electrolyte reactivity is measured is
Question 3
Question
Which of the following mechanisms varies fluid output so that it equals input?
Question 4
Question
Which of the following statement is true?
Answer
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Total body water as a percentage of total body weight does not differ due to age
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Total body water as a percentage of total body weight is approximately 30% in a healthy non-obese female
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Males that are healthy and non-obese will have 60% of their body weight as water
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Adipose tissue contains less water than bone tissue
Question 5
Question
Obese people have a higher water content per kilogram of body weight than slender people
Question 6
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Fluid intake usually equals fluid output
Question 7
Question
Electrolytes are substances that bind in water
Question 8
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Thirst is associated with any condition that decreases total volume of body water
Question 9
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Hypervolemia refers to excess blood volume
Question 10
Question
The two factors that determine urine volume are
Answer
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the amount of antidiuretic hormone (ADH) and aldosterone secretion
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the amount of adrenocorticotropic hormone (ACTH) and ADH secretion
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fluid intake and ADH secretion
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the glomerular filtration rate and the rate of water reabsorption by the renal tubules
Question 11
Question
Which of the following is an example of obligatory fluid output?
Answer
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water vapor in expired air
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water diffusion through the skin
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both water vapor in expired air and water diffusion through the skin
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none of the above
Question 12
Question
Blood hydrostatic pressure
Answer
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tends to force fluid out of capillaries and into interstitial fluid
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tends to force fluid out of interstitial fluid and into capillaries
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allows for an equilibrium across the capillary membrane
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none of the above
Question 13
Question
If a person takes nothing by mouth for several days, fluid output decreases to zero to compensate and maintain homeostasis
Question 14
Question
Which of the following is not a correct statement regarding severe dehydration?
Answer
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Loss of skin turgor is a symptom of severe dehydration
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the relative loss of water in sweat is greater than the loss of electrolytes
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Sweating serves the body by increasing body heat
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Treatment of dehydration requires appropriate electrolyte replacement therapy
Question 15
Question
The formula representing Starling's law of the capillaries is
Answer
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(BHP + BCOP) - (IFCOP + IFHP) = EFP
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(BHP + IFHP) - (IFCOP + BCOP) = EFP
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(BHP + IFCOP) - (IFHP + BCOP) = EFP
Question 16
Question
Which large molecules are retained by the selectively permeable cell membrane?
Answer
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sodium ions
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potassium ions
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proteins
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water
Question 17
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Edema can be defined as the presence of abnormally large amounts of fluid in the intercellular spaces of the body
Question 18
Question
The most significant player regulating ICF composition is the plasma membrane
Question 19
Question
Osmotic pressure is influenced by large protein molecules in the intracellular fluid
Question 20
Question
The release ADH causes an increase in the reabsorption of sodium and water by the renal tubules.
Question 21
Question
Over 8 liters of various internal secretions are produced daily.
Question 22
Question
Potassium deficit is termed hypokalemia
Question 23
Question
ECF depletion is said to be the last line of defense against dehydration.
Question 24
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By volume, intestinal secretions are the largest sodium-containing internal secretions.
Question 25
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Skin turgor is an important indicator of fluid volume stability.
Question 26
Question
The largest volume of water by far lies [blank_start]inside[blank_end] cells.
Question 27
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Infants have [blank_start]more[blank_end] water in comparison to body weight than adults of either sex.
Question 28
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In general as age increases, the amount of water per pound of body weight [blank_start]decreases[blank_end].
Question 29
Question
Signals generated by osmoreceptors in the subfornical organ and hypothalamus stimulate the secretion of
Answer
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aldosterone
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insulin
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ADH
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ANH
Question 30
Question
Which of the following is true when ECF volume decreases?
Answer
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Aldosterone secretion increases
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Kidney tubule reabsorption of sodium increases
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Urine volume decreases
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All of the above are true
Question 31
Question
Interstitial fluid contains hardly any protein anions
Question 32
Question
No net transfer of water occurs between blood and interstitial fluid as long as effective filtration pressure (EFP) equals 0
Question 33
Question
Any change in the solute concentration of ECF will have a direct effect on water movement across the cell