WGU D027 QUESTIONS WITH 100% ACCURATE
ANSWERS
What does aldosterone regulate? - Accurate answers re-absorption of sodium and water
(indirectly excretion of potassium)
What causes the edema that occurs during the inflammatory process? - Accurate answers
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 - Accurate answers 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 - Accurate answers 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 - Accurate answers -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? - Accurate answers the heart is relaxed, semilunar valves
are closed and blood from atria fills ventricles; low pressure.
What happens during systole? - Accurate answers 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 - Accurate answers ventricular depolarization and atrial repolarization
What effect does atherosclerosis have on the development of an aneurysm? - Accurate
answers Erodes the vessel wall. Plaque formation makes vessel rigid and susceptible to
rupture.
,low-density lipoprotein (LDL) - Accurate answers 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? -
Accurate answers 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? - Accurate answers posterior pituitary gland
T3 and T4 are regulated by - Accurate answers TSH
What causes SIADH? - Accurate answers 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 - Accurate answers 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 - Accurate answers Increased capillary permeability
The increased flow and capillary permeability result in a leakage of plasma from the vessels
causing swelling (edema) in the surrounding tissue and is solely responsible for inflammation
induced edema
A 56-year-old diabetic patient has not taken his insulin in 4 days due to him" feeling well
without it". He is admitted to the ED with an elevated blood sugar. What electrolyte should be
assessed FIRST?
-Calcium
-Sodium
-Potassium
-Chloride - Accurate answers Potassium
Insulin facilitates the intracellular transport of potassium, phosphate, and magnesium. Without
insulin, potassium does not get transported to the intracellular environment and the serum
potassium will rise.
, A 46-year-old woman is considering having another child. The healthcare providers are
explaining to the woman that children born to women late in life have an increased rate of
having children with this condition.
-Kawasaki's disease
-Down syndrome
-Klinefelter syndrome
-Turner syndrome - Accurate answers Down syndrome risk increases with Maternal age.
A patient with several risk factors is concerned about developing type 2 diabetes. The
healthcare professional advises the patient to lose weight, explaining that obesity is an
important risk factor for type 2 diabetes mellitus because it causes what?
-Reduced insulin production by the pancreas
-Increased resistance to insulin in the cells
-Obstructed outflow of insulin from the pancreas
-Stimulation of glucose production by the liver - Accurate answers Increased resistance to
insulin in the cells
People with type 2 diabetes mellitus suffer from insulin resistance. Obesity causes this
resistance so their cells have difficulty using insulin. Obesity does not lead to reduced insulin
production, obstructed insulin outflow, or stimulation of glucose production.
When evaluating a patient for hypertensive target organ damage, the APRN looks for evidence
of:
-Lipid abnormality
-Insulin resistance
-Left ventricular hypertrophy
-Clotting disorder - Accurate answers Left ventricular hypertrophy
On ultrasound a patient had 4-chamber dilation with an ejection fraction of 15% and a pleural
effusion on chest x-ray. Elevated liver function tests, hypokalemia, and hypomagnesema are
seen on lab results. Blood pressure is 115/60 and heart rate is 110 bpm with regular rate and
rhythm, respiratory rate 30 bpm and O2 saturation is 88% on room air. Initial therapy should
include all of the following except:
-Diuretic
-ACE Inhibitor
-Digoxin
-Beta Blocker - Accurate answers Digoxin
A patient in the emergency department is suspected of having a myocardial infarction (MI). The
initial cardiac troponin 1 level was negative. What action by the healthcare professional is best?
-Administer thrombolytic therapy.
-Discharge the patient.
-Schedule repeat troponin within a few hours.
-Prepare the patient for cardiac catheterization. - Accurate answers Schedule repeat
troponin within a few hours.
ANSWERS
What does aldosterone regulate? - Accurate answers re-absorption of sodium and water
(indirectly excretion of potassium)
What causes the edema that occurs during the inflammatory process? - Accurate answers
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 - Accurate answers 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 - Accurate answers 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 - Accurate answers -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? - Accurate answers the heart is relaxed, semilunar valves
are closed and blood from atria fills ventricles; low pressure.
What happens during systole? - Accurate answers 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 - Accurate answers ventricular depolarization and atrial repolarization
What effect does atherosclerosis have on the development of an aneurysm? - Accurate
answers Erodes the vessel wall. Plaque formation makes vessel rigid and susceptible to
rupture.
,low-density lipoprotein (LDL) - Accurate answers 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? -
Accurate answers 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? - Accurate answers posterior pituitary gland
T3 and T4 are regulated by - Accurate answers TSH
What causes SIADH? - Accurate answers 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 - Accurate answers 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 - Accurate answers Increased capillary permeability
The increased flow and capillary permeability result in a leakage of plasma from the vessels
causing swelling (edema) in the surrounding tissue and is solely responsible for inflammation
induced edema
A 56-year-old diabetic patient has not taken his insulin in 4 days due to him" feeling well
without it". He is admitted to the ED with an elevated blood sugar. What electrolyte should be
assessed FIRST?
-Calcium
-Sodium
-Potassium
-Chloride - Accurate answers Potassium
Insulin facilitates the intracellular transport of potassium, phosphate, and magnesium. Without
insulin, potassium does not get transported to the intracellular environment and the serum
potassium will rise.
, A 46-year-old woman is considering having another child. The healthcare providers are
explaining to the woman that children born to women late in life have an increased rate of
having children with this condition.
-Kawasaki's disease
-Down syndrome
-Klinefelter syndrome
-Turner syndrome - Accurate answers Down syndrome risk increases with Maternal age.
A patient with several risk factors is concerned about developing type 2 diabetes. The
healthcare professional advises the patient to lose weight, explaining that obesity is an
important risk factor for type 2 diabetes mellitus because it causes what?
-Reduced insulin production by the pancreas
-Increased resistance to insulin in the cells
-Obstructed outflow of insulin from the pancreas
-Stimulation of glucose production by the liver - Accurate answers Increased resistance to
insulin in the cells
People with type 2 diabetes mellitus suffer from insulin resistance. Obesity causes this
resistance so their cells have difficulty using insulin. Obesity does not lead to reduced insulin
production, obstructed insulin outflow, or stimulation of glucose production.
When evaluating a patient for hypertensive target organ damage, the APRN looks for evidence
of:
-Lipid abnormality
-Insulin resistance
-Left ventricular hypertrophy
-Clotting disorder - Accurate answers Left ventricular hypertrophy
On ultrasound a patient had 4-chamber dilation with an ejection fraction of 15% and a pleural
effusion on chest x-ray. Elevated liver function tests, hypokalemia, and hypomagnesema are
seen on lab results. Blood pressure is 115/60 and heart rate is 110 bpm with regular rate and
rhythm, respiratory rate 30 bpm and O2 saturation is 88% on room air. Initial therapy should
include all of the following except:
-Diuretic
-ACE Inhibitor
-Digoxin
-Beta Blocker - Accurate answers Digoxin
A patient in the emergency department is suspected of having a myocardial infarction (MI). The
initial cardiac troponin 1 level was negative. What action by the healthcare professional is best?
-Administer thrombolytic therapy.
-Discharge the patient.
-Schedule repeat troponin within a few hours.
-Prepare the patient for cardiac catheterization. - Accurate answers Schedule repeat
troponin within a few hours.
