WGU pathophysiology D236 2025)
comprehensive questions and
verified answers (Detailed &
Elaborated)With Rationales
ACTUAL EXAM 2025 TEST 100%
Solved 2025!!
How can hyperkalemia lead to cardiac
arrest? - ✔ANASWER✔-Normal levels of
potassium are between 3.5 and 5.2 mEq/dL.
,Hyperkalemia refers to potassium levels
higher that 5.2 mEq/dL.
Rationale: A major function of potassium is
to conduct nerve impulses in muscles. Too
low and muscle weakness occurs and too
much can cause muscle spasms.
This is especially dangerous in the heart
muscle and an irregular heartbeat can cause
a heart attack
What is Starling's Law of Capillary forces?
How does this explain why a nutritionally
deficient child would have edema? -
✔ANASWER✔-Starling's Law describes how
,fluids move across the capillary membrane.
There are two major opposing forces that
act to balance each other, hydrostatic
pressure (pushing water out of the
capillaries) and osmotic pressure (including
oncontic pressure, which pushes fluid into
the capillaries).
Rationale: Both electrolytes and proteins
(oncontic pressure) in the blood affect
osmotic pressure, high electrolyte and
protein concentrations in the blood would
cause water to leave the cells and interstitial
space and enter the blood stream to dilute
the high concentrations.
, On, the other hand, low electrolyte and
protein concentrations (as seen in a
nutritionally deficient child) would cause
water to leave the capillaries and enter the
cells and interstitial fluid which can lead to
edema.
How does the RAAS (Renin-Angiotensin-
Aldosterone System) result in increased
blood volume and increased blood
pressure? - ✔ANASWER✔-A drop in blood
pressure is sensed by the kidneys by low
perfusion, which in turn begins to secrete
renin.
Rationale: Renin then triggers the liver to
produce angiotensinogen, which is
comprehensive questions and
verified answers (Detailed &
Elaborated)With Rationales
ACTUAL EXAM 2025 TEST 100%
Solved 2025!!
How can hyperkalemia lead to cardiac
arrest? - ✔ANASWER✔-Normal levels of
potassium are between 3.5 and 5.2 mEq/dL.
,Hyperkalemia refers to potassium levels
higher that 5.2 mEq/dL.
Rationale: A major function of potassium is
to conduct nerve impulses in muscles. Too
low and muscle weakness occurs and too
much can cause muscle spasms.
This is especially dangerous in the heart
muscle and an irregular heartbeat can cause
a heart attack
What is Starling's Law of Capillary forces?
How does this explain why a nutritionally
deficient child would have edema? -
✔ANASWER✔-Starling's Law describes how
,fluids move across the capillary membrane.
There are two major opposing forces that
act to balance each other, hydrostatic
pressure (pushing water out of the
capillaries) and osmotic pressure (including
oncontic pressure, which pushes fluid into
the capillaries).
Rationale: Both electrolytes and proteins
(oncontic pressure) in the blood affect
osmotic pressure, high electrolyte and
protein concentrations in the blood would
cause water to leave the cells and interstitial
space and enter the blood stream to dilute
the high concentrations.
, On, the other hand, low electrolyte and
protein concentrations (as seen in a
nutritionally deficient child) would cause
water to leave the capillaries and enter the
cells and interstitial fluid which can lead to
edema.
How does the RAAS (Renin-Angiotensin-
Aldosterone System) result in increased
blood volume and increased blood
pressure? - ✔ANASWER✔-A drop in blood
pressure is sensed by the kidneys by low
perfusion, which in turn begins to secrete
renin.
Rationale: Renin then triggers the liver to
produce angiotensinogen, which is
