WGU D027 Exam 2025 With 100%
Correct Answers
What does aldosterone regulate? CORRECT ANSWER re-
absorption of sodium and water (indirectly excretion of
potassium)
What causes the edema that occurs during the inflammatory
process? CORRECT ANSWER Increased vascular permeability.
Increased pressure in the vasculature secondary to the
vasodilatory effects of inflammation result in leakage of fluid
into 3rd spaces
Klinefelter syndrome CORRECT ANSWER A chromosomal
disorder in which males have an extra X chromosome, making
them XXY instead of XY.
High pitched voice
mental impairment
sparse body hair
small testes
gynecomastia
,Alpha Thalassemia CORRECT ANSWER Disease in which
there are insufficient alpha-globin chains due to gene deletions
causing a reduction in hemoglobin. Future offspring have 1/4
chance of disease.
Blood flow of the heart CORRECT ANSWER -Oxygen poor
blood enter right atrium and flows into right ventricle via vena
cava
-Blood is pumped from right ventricle into pulmonary artery
(goes into lungs)
-Oxygen rich blood returns to heart via pulmonary vein and
enters left atrium and flows into left ventricle
-Blood is pumped into the aorta and circulated to body
What happens during diastole? CORRECT ANSWER the heart
is relaxed, semilunar valves are closed and blood from atria fills
ventricles; low pressure.
What happens during systole? CORRECT ANSWER Heart
muscles contract, creating pressure to open the pulmonary and
aortic valves.
Blood from R ventricle is pushed into the lungs to exchange O2
and CO2.
Blood from the L ventricle is pushed thru the aorta to be
distributed throughout the body.
,QRS complex CORRECT ANSWER ventricular depolarization
and atrial repolarization
What effect does atherosclerosis have on the development of an
aneurysm? CORRECT ANSWER Erodes the vessel wall.
Plaque formation makes vessel rigid and susceptible to rupture.
low-density lipoprotein (LDL) CORRECT ANSWER blood fat
that transports cholesterol to organs and tissues; excess amounts
result in the accumulation of fatty deposits on artery walls.
<100
Which factor is responsible for hypertrophy of the myocardium
associated with HTN? CORRECT ANSWER Angiotensin II
Stimulates increased cardiac preload and afterload leading to
hypertrophy, poor myocardial compliance, and ventricular
dilation. Causes sarcomere death, abnormal collagen matrices,
and interstitial fibrosis.
What gland produces Antidiuretic hormone? CORRECT
ANSWER posterior pituitary gland
T3 and T4 are regulated by CORRECT ANSWER TSH
, What causes SIADH? CORRECT ANSWER Too much ADH.
Increased intravascular volume, decreased urine production,
electrolyte disturbance.
CNS - stroke, hemorrhage, infection, trauma
Medications - narcotics, oxytocin, chlorpropamide, antiepileptic
agents
Trauma - pain is a powerful stimulus for ADH. What for post op
pts who is receiving fluids
Lung - simple pneumonia or ADH secreting small cell cancer of
the lung.
Hypothyroidism CORRECT ANSWER High TSH, low T3 and
T4
During the body's inflammatory process, what causes edema?
-Vasodilation of blood vessels
-Emigration of neutrophils
-Endothelial cell expansion
-Increased capillary permeability CORRECT ANSWER
Increased capillary permeability
The increased flow and capillary permeability result in a leakage
of plasma from the vessels causing swelling (edema) in the
Correct Answers
What does aldosterone regulate? CORRECT ANSWER re-
absorption of sodium and water (indirectly excretion of
potassium)
What causes the edema that occurs during the inflammatory
process? CORRECT ANSWER Increased vascular permeability.
Increased pressure in the vasculature secondary to the
vasodilatory effects of inflammation result in leakage of fluid
into 3rd spaces
Klinefelter syndrome CORRECT ANSWER A chromosomal
disorder in which males have an extra X chromosome, making
them XXY instead of XY.
High pitched voice
mental impairment
sparse body hair
small testes
gynecomastia
,Alpha Thalassemia CORRECT ANSWER Disease in which
there are insufficient alpha-globin chains due to gene deletions
causing a reduction in hemoglobin. Future offspring have 1/4
chance of disease.
Blood flow of the heart CORRECT ANSWER -Oxygen poor
blood enter right atrium and flows into right ventricle via vena
cava
-Blood is pumped from right ventricle into pulmonary artery
(goes into lungs)
-Oxygen rich blood returns to heart via pulmonary vein and
enters left atrium and flows into left ventricle
-Blood is pumped into the aorta and circulated to body
What happens during diastole? CORRECT ANSWER the heart
is relaxed, semilunar valves are closed and blood from atria fills
ventricles; low pressure.
What happens during systole? CORRECT ANSWER Heart
muscles contract, creating pressure to open the pulmonary and
aortic valves.
Blood from R ventricle is pushed into the lungs to exchange O2
and CO2.
Blood from the L ventricle is pushed thru the aorta to be
distributed throughout the body.
,QRS complex CORRECT ANSWER ventricular depolarization
and atrial repolarization
What effect does atherosclerosis have on the development of an
aneurysm? CORRECT ANSWER Erodes the vessel wall.
Plaque formation makes vessel rigid and susceptible to rupture.
low-density lipoprotein (LDL) CORRECT ANSWER blood fat
that transports cholesterol to organs and tissues; excess amounts
result in the accumulation of fatty deposits on artery walls.
<100
Which factor is responsible for hypertrophy of the myocardium
associated with HTN? CORRECT ANSWER Angiotensin II
Stimulates increased cardiac preload and afterload leading to
hypertrophy, poor myocardial compliance, and ventricular
dilation. Causes sarcomere death, abnormal collagen matrices,
and interstitial fibrosis.
What gland produces Antidiuretic hormone? CORRECT
ANSWER posterior pituitary gland
T3 and T4 are regulated by CORRECT ANSWER TSH
, What causes SIADH? CORRECT ANSWER Too much ADH.
Increased intravascular volume, decreased urine production,
electrolyte disturbance.
CNS - stroke, hemorrhage, infection, trauma
Medications - narcotics, oxytocin, chlorpropamide, antiepileptic
agents
Trauma - pain is a powerful stimulus for ADH. What for post op
pts who is receiving fluids
Lung - simple pneumonia or ADH secreting small cell cancer of
the lung.
Hypothyroidism CORRECT ANSWER High TSH, low T3 and
T4
During the body's inflammatory process, what causes edema?
-Vasodilation of blood vessels
-Emigration of neutrophils
-Endothelial cell expansion
-Increased capillary permeability CORRECT ANSWER
Increased capillary permeability
The increased flow and capillary permeability result in a leakage
of plasma from the vessels causing swelling (edema) in the
