Chapter 15 Postpartum Adaptations GRADED A
Advanced Pathophysiology Week 2 Quiz
Question 1
pts
Which are indications of dehydration?
Tachycardia and weight loss
Decreased hemoglobin and
hematocrit
Muscle weakness and decreased deep tendon reflexes
Polyuria and hyperventilation
Marked water deficit is manifested by symptoms of dehydration: headache,
thirst, dry skin and mucous membranes, elevated temperature, weight loss,
and decreased or concentrated urine (with the exception of diabetes
insipidus). Skin turgor may be normal or decreased. Symptoms of
hypovolemia, including tachycardia, weak pulses, and postural hypotension,
may be present.
Question 2
pts
At the arterial end of capillaries, fluid moves from the intravascular space into the
interstitial space because the
interstitial hydrostatic pressure is higher than the capillary hydrostatic
pressure. capillary oncotic pressure is lower than the interstitial
hydrostatic pressure. interstitial oncotic pressure is higher than the
interstitial hydrostatic pressure.
capillary hydrostatic pressure is higher than the capillary oncotic pressure.
At the arterial end of capillaries, fluid moves from the intravascular space into
the interstitial, because capillary hydrostatic pressure is higher than the
capillary oncotic pressure.
Question 3
pts
Which enzyme is secreted by the juxtaglomerular cells of the kidney when circulating
blood volume is reduced?
Angiotensin
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, Chapter 15 Postpartum Adaptations GRADED A
II
Aldosterone
Angiotensin
I
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, Chapter 15 Postpartum Adaptations GRADED A
Renin
When circulating blood volume or blood pressure is reduced, renin, an
enzyme secreted by the juxtaglomerular cells of the kidney, is released in
response to sympathetic nerve stimulation and decreased perfusion of the
renal vasculature.
Question 4
pts
In hyperkalemia, cardiac rhythm changes are a direct result of
Correct Answer
cardiac cell
hypopolarization. cardiac
cell repolarization.
cardiac cell hyperexcitability.
depression of the sinoatrial (SA)
node.
If extracellular potassium concentration increases without a significant
change in
intracellular potassium, the resting membrane potential becomes more
positive (i.e., changes from –90 to –80 mV) and the cell membrane is
hypopolarized (the inside of the cell becomes less negative or partially
depolarized [increase excitability]). (Electrical properties of cells are
discussed in Chapter 1.)
Question 5
pts
Why are infants susceptible to significant losses in total body
water (TBW)? Because they are unable communicate adequately
when they are thirsty Because more than half of an infant’s body
weight is water
Because an infant’s kidneys are not mature enough to counter fluids losses
Because infants have a slow metabolic rate
Infants are particularly susceptible to significant changes in TBW because of
their high metabolic rate and the accelerated turnover of body fluids caused
by their greater body surface area in proportion to total body size. Loss of
fluids from diarrhea can represent a significant proportion of body weight.
This study source was downloaded by 100000832558064 from CourseHero.com on 05-18-2022 20:55:45 GMT -05:00
https://www.coursehero.com/file/26620329/Advanced-Pathophysiology-Week-2-Quizdocx/
Advanced Pathophysiology Week 2 Quiz
Question 1
pts
Which are indications of dehydration?
Tachycardia and weight loss
Decreased hemoglobin and
hematocrit
Muscle weakness and decreased deep tendon reflexes
Polyuria and hyperventilation
Marked water deficit is manifested by symptoms of dehydration: headache,
thirst, dry skin and mucous membranes, elevated temperature, weight loss,
and decreased or concentrated urine (with the exception of diabetes
insipidus). Skin turgor may be normal or decreased. Symptoms of
hypovolemia, including tachycardia, weak pulses, and postural hypotension,
may be present.
Question 2
pts
At the arterial end of capillaries, fluid moves from the intravascular space into the
interstitial space because the
interstitial hydrostatic pressure is higher than the capillary hydrostatic
pressure. capillary oncotic pressure is lower than the interstitial
hydrostatic pressure. interstitial oncotic pressure is higher than the
interstitial hydrostatic pressure.
capillary hydrostatic pressure is higher than the capillary oncotic pressure.
At the arterial end of capillaries, fluid moves from the intravascular space into
the interstitial, because capillary hydrostatic pressure is higher than the
capillary oncotic pressure.
Question 3
pts
Which enzyme is secreted by the juxtaglomerular cells of the kidney when circulating
blood volume is reduced?
Angiotensin
This study source was downloaded by 100000832558064 from CourseHero.com on 05-18-2022 20:55:45 GMT -05:00
https://www.coursehero.com/file/26620329/Advanced-Pathophysiology-Week-2-Quizdocx/
, Chapter 15 Postpartum Adaptations GRADED A
II
Aldosterone
Angiotensin
I
This study source was downloaded by 100000832558064 from CourseHero.com on 05-18-2022 20:55:45 GMT -05:00
https://www.coursehero.com/file/26620329/Advanced-Pathophysiology-Week-2-Quizdocx/
, Chapter 15 Postpartum Adaptations GRADED A
Renin
When circulating blood volume or blood pressure is reduced, renin, an
enzyme secreted by the juxtaglomerular cells of the kidney, is released in
response to sympathetic nerve stimulation and decreased perfusion of the
renal vasculature.
Question 4
pts
In hyperkalemia, cardiac rhythm changes are a direct result of
Correct Answer
cardiac cell
hypopolarization. cardiac
cell repolarization.
cardiac cell hyperexcitability.
depression of the sinoatrial (SA)
node.
If extracellular potassium concentration increases without a significant
change in
intracellular potassium, the resting membrane potential becomes more
positive (i.e., changes from –90 to –80 mV) and the cell membrane is
hypopolarized (the inside of the cell becomes less negative or partially
depolarized [increase excitability]). (Electrical properties of cells are
discussed in Chapter 1.)
Question 5
pts
Why are infants susceptible to significant losses in total body
water (TBW)? Because they are unable communicate adequately
when they are thirsty Because more than half of an infant’s body
weight is water
Because an infant’s kidneys are not mature enough to counter fluids losses
Because infants have a slow metabolic rate
Infants are particularly susceptible to significant changes in TBW because of
their high metabolic rate and the accelerated turnover of body fluids caused
by their greater body surface area in proportion to total body size. Loss of
fluids from diarrhea can represent a significant proportion of body weight.
This study source was downloaded by 100000832558064 from CourseHero.com on 05-18-2022 20:55:45 GMT -05:00
https://www.coursehero.com/file/26620329/Advanced-Pathophysiology-Week-2-Quizdocx/
