2024 WGU 370 Pathophysiology Final Exam New
Latest Version with All Questions from Actual
Exam and 100% Correct Answers
The principle Ig mediator of
... [Show More] type I hypersensitivity reactions is
A. IgA.
B. IgG.
C. IgM.
D. IgE. ---------- Correct Answer ---------- D. IgE.
Cerebral aneurysm is most frequently the result of
A. embolic stroke.
B. subarachnoid hemorrhage.
C. subdural hemorrhage.
D. meningitis. ---------- Correct Answer ---------- B. subarachnoid hemorrhage.
A serious complication of deep vein thrombosis is
A. stroke.
B. hypertensive crisis.
C. extremity necrosis.
D. pulmonary embolus. ---------- Correct Answer ---------- D. pulmonary embolus.
A patient with metastatic lung cancer wants to know her chances for survival. Which
response is correct?
A. "Lung cancer is always fatal."
B. "Lung cancer has about a 15% survival rate."
C. "Lung cancer is highly curable when diagnosed early."
D. "Lung cancer death rate has decreased significantly, as with all other cancers." -------
--- Correct Answer ---------- B. "Lung cancer has about a 15% survival rate."
The dementia of Alzheimer disease is associated with structural changes in the brain,
including
A. deposition of amyloid plaques in the brain.
B. degeneration of basal ganglia.
C. hypertrophy of frontal lobe neurons.
D. significant aluminum deposits in the brain. ---------- Correct Answer ---------- A.
deposition of amyloid plaques in the brain.
The most common cause of mechanical bowel obstruction is
A. volvulus.
B. intussusception.
C. adhesions.
D. fecal impaction. ---------- Correct Answer ---------- A. volvulus.
Macrovascular complications of diabetes mellitus include
a. Ischemic cerebrovascular accidents
b. Retinopathy and nephropathy
c. Capillary basement membrane thickening
d. Hemorrhagic cerebrovascular accidents --------- Correct Answer ---------- a. Ischemic
cerebrovascular accidents
Which is a risk factor for cerebral palsy?
a. High birth weight
b. Post-term delivery
c. Prenatal infection
d. Genetic defects --------- Correct Answer ---------- c. Prenatal infection
Which is a required for red blood cell production? (Select all that apply.)
a. Iron
b. Folate
c. Vitamin B12
d. Vitamin K
e. Vitamin C --------- Correct Answer ---------- a. Iron
b. Folate
c. Vitamin B12
Tetralogy of Fallot is characterized by which of the following? (Select all that apply.)
a. A ventricular septal defect
b. Right ventricular hypertrophy
c. Transposition of the great arteries
d. Obstructed right ventricular outflow
e. An aorta positioned above the ventricular septal opening --------- Correct Answer ------
---- a. A ventricular septal defect
b. Right ventricular hypertrophy
d. Obstructed right ventricular outflow
e. An aorta positioned above the ventricular septal opening
The term diverticulosis refers to a condition characterized by
a. Polyps or growths on the colon wall
b. Inflammation of small pockets in the colon wall
c. Acquired herniations of the muscular colon wall mucosa and submucosa
d. Congenital herniations of the muscular colon wall mucosa and submucosa ---------
Correct Answer ---------- c. Acquired herniations of the muscular colon wall mucosa and
submucosa
Abnormal vascular regulation by endothelial cells in small vessels of the heart
contributes to
a. Hypertension
b. Dysrhythmias
c. Truncus arteriosus
d. Ischemic heart disease --------- Correct Answer ---------- d. Ischemic heart disease
Endothelial cells are important regulators of vascular tone. They secrete variable
amounts of constricting and relaxing factors to control tissue perfusion.
Hypertension is a result of a variety of factors not all related to vascular tone.
Dysrhythmias would affect conduction and the function of the heart chambers but not
vascular tone.
Truncus arteriosus results in only one large artery leaving the heart.
Anemia of chronic renal failure is caused by the lack of
a. Adrenaline
b. Erythropoietin
c. Thyroid hormone
d. Parathyroid hormone --------- Correct Answer ---------- b. Erythropoietin
Erythropoietin is secreted by the kidney in response to hypoxia caused by a low
hemoglobin concentration. Erythropoietin stimulates the bone marrow to produce
mature red blood cells. The tissue of the diseased kidney has difficulty producing this
hormone.
A lack of adrenaline, thyroid hormone, and parathyroid hormone are not factors in
anemia of chronic renal failure.
A 39-year-old patient who has been taking a specific antibiotic for years without
problems develops tachycardia, lowered blood pressure, wheezing, and urticaria when
given this antibiotic in the clinic. The most likely explanation for this occurrence is that
the patient
a. Is experiencing an anaphylactic hypersensitivity reaction to the antibiotic
b. Is experiencing a reaction to something other than the antibiotic
c. Has received the wrong medication
d. Has developed autoimmunity --------- Correct Answer ---------- a. Is experiencing an
anaphylactic hypersensitivity reaction to the antibiotic
It is a fallacy that a patient will not develop allergies to a drug if the drug has been taken
in the past without problems. Hypersensitivity reactions are specific to a particular
antigen and usually do not occur on first exposure to the antigen. The symptoms are
those seen in anaphylactic reactions and antibiotic use should be considered.
Receiving the wrong medication would not necessarily result in this symptomology.
Autoimmunity issues relate to the body's reaction to itself as foreign and not to
medications.
Which statement regarding serum magnesium (Mg ++) is true? (Select all that apply.)
a. Alcohol-related diseases frequently cause low Mg+ levels.
b. Vomiting is not generally seen as a major cause of Mg+ loss.
c. Mg++ levels present similarly to calcium (Ca++) levels in the blood.
d. Mg+ deficiencies often result in low serum potassium (K+) level [Show Less]