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WGU D115 OA ADVANCED PATHOPHYSIOLOGYEXAM 2025 | | ACTUAL EXAM QUESTIONS WITH DETAILED ANSWERS WITH RATIONALES AND A READINESS PRACTICE EXAM TEST BANK WITH A STUDY GUIDE | LATEST UPDATED AND VERIFIED FOR GUARANTEED PASS$19.99
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WGU D115 OA ADVANCED PATHOPHYSIOLOGYEXAM 2025 | | ACTUAL EXAM QUESTIONS WITH DETAILED ANSWERS WITH RATIONALES AND A READINESS PRACTICE EXAM TEST BANK WITH A STUDY GUIDE | LATEST UPDATED AND VERIFIED FOR GUARANTEED PASS
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Course
Advanced pathophysiology
Institution
Advanced Pathophysiology
WGU D115 OA ADVANCED PATHOPHYSIOLOGYEXAM 2025 | | ACTUAL EXAM QUESTIONS WITH DETAILED ANSWERS WITH RATIONALES AND A READINESS PRACTICE EXAM TEST BANK WITH A STUDY GUIDE | LATEST UPDATED AND VERIFIED FOR GUARANTEED PASS
1. Which cellular adaptation is characterized by an increase in cell size and consequently an
increase in the size of the affected organ?
o A. Hyperplasia
o B. Hypertrophy
o C. Atrophy
o D. Metaplasia
2. Which of the following is a common feature of chronic inflammation?
o A. Neutrophil infiltration
o B. Formation of granulomas
o C. Edema
o D. Immediate hypersensitivity reactions
3. Which electrolyte imbalance is most likely to cause cardiac arrhythmias?
o A. Hypercalcemia
o B. Hypokalemia
o C. Hypernatremia
o D. Hypomagnesemia
4. What is the primary mechanism by which Type II hypersensitivity reactions cause tissue
damage?
o A. Immune complex deposition
o B. T-cell mediated cytotoxicity
o C. Antibody-mediated cell destruction
o D. Immediate release of histamine
5. Which genetic disorder is characterized by the presence of an extra chromosome 21?
o A. Turner syndrome
o B. Klinefelter syndrome
o C. Down syndrome
, o D. Fragile X syndrome
6. Which type of shock is primarily caused by severe infection and the systemic inflammatory
response it induces?
o A. Cardiogenic shock
o B. Hypovolemic shock
o C. Neurogenic shock
o D. Septic shock
7. In the context of cancer, what does the term "anaplasia" refer to?
o A. Decreased cell size
o B. Increased cell differentiation
o C. Loss of cellular differentiation
o D. Programmed cell death
8. Which of the following conditions is characterized by an autoimmune attack on the myelin
sheath of central nervous system neurons?
o A. Multiple sclerosis
o B. Guillain-Barré syndrome
o C. Myasthenia gravis
o D. Amyotrophic lateral sclerosis
9. Which hormone is primarily responsible for lowering blood glucose levels?
o A. Glucagon
o B. Cortisol
o C. Epinephrine
o D. Insulin
10. Which of the following is a hallmark of acute respiratory distress syndrome (ARDS)?
o A. Pulmonary hypertension
o B. Increased lung compliance
o C. Alveolar-capillary membrane damage
o D. Hypercapnia
Short Answer Questions
, 11. Describe the pathophysiological mechanisms involved in the development of atherosclerosis.
12. Explain the role of the renin-angiotensin-aldosterone system (RAAS) in the regulation of blood
pressure.
13. Discuss the pathogenesis of type 1 diabetes mellitus.
14. What are the main differences between benign and malignant tumors?
15. Explain the process of apoptosis and its significance in maintaining cellular homeostasis.
Case Study
16. A 55-year-old male presents with a history of chronic cough, weight loss, and hemoptysis. A
chest X-ray reveals a mass in the right upper lobe of the lung. Discuss the potential differential
diagnoses and the pathophysiological basis for each.
Answers
Multiple Choice Questions
1. B. Hypertrophy
2. B. Formation of granulomas
3. B. Hypokalemia
4. C. Antibody-mediated cell destruction
5. C. Down syndrome
6. D. Septic shock
7. C. Loss of cellular differentiation
8. A. Multiple sclerosis
9. D. Insulin
10. C. Alveolar-capillary membrane damage
Short Answer Questions
11. Atherosclerosis involves endothelial injury, lipid accumulation, inflammatory cell infiltration,
and smooth muscle cell proliferation, leading to plaque formation and arterial narrowing.
12. RAAS: Renin is released by the kidneys in response to low blood pressure, converting
angiotensinogen to angiotensin I. Angiotensin-converting enzyme (ACE) converts angiotensin I
to angiotensin II, which causes vasoconstriction and stimulates aldosterone secretion, increasing
sodium and water retention to raise blood pressure.
13. Type 1 diabetes mellitus is an autoimmune disorder where the immune system attacks
pancreatic beta cells, leading to insulin deficiency and hyperglycemia.
, 14. Benign tumors are non-invasive, well-differentiated, and slow-growing, while malignant
tumors are invasive, poorly differentiated, and can metastasize.
15. Apoptosis is a programmed cell death process that eliminates damaged or unnecessary cells
without causing inflammation, crucial for tissue homeostasis and development.
Case Study
16. Differential diagnoses for a lung mass with chronic cough, weight loss, and hemoptysis include
lung cancer (most likely non-small cell lung cancer), tuberculosis, and fungal infections. The
pathophysiological basis involves tumor growth obstructing airways, erosion into blood vessels
causing hemoptysis, and systemic effects like weight loss due to cytokine release and metabolic
changes.
Advanced Pathophysiology (D115 OA)
Instructions:
Read each question carefully.
Choose the best answer from the provided options.
This exam is designed to test your knowledge and understanding of advanced pathophysiology.
Question 1: What is the primary pathophysiological mechanism underlying Type 1 Diabetes Mellitus?
A. Insulin resistance in peripheral tissues
B. Autoimmune destruction of pancreatic beta cells
C. Overproduction of insulin by the pancreas
D. Impaired glucose uptake by muscle cells
Answer: B. Autoimmune destruction of pancreatic beta cells
Question 2: Which of the following best describes the pathophysiology of Chronic Obstructive
Pulmonary Disease (COPD)?
A. Reversible airway obstruction and hyperresponsiveness
B. Irreversible airflow limitation due to airway and alveolar abnormalities
C. Pulmonary hypertension leading to right heart failure
D. Acute inflammation of the bronchi
Answer: B. Irreversible airflow limitation due to airway and alveolar abnormalities
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