ATI RN
WGU Pathophysiology Final Exam
1. A male patient is receiving testosterone therapy for hypogonadism. What adverse effect should the nurse monitor during this therapy?
- A. Increased risk of cardiovascular events
- B. Increased risk of liver dysfunction
- C. Increased risk of prostate cancer
- D. Increased risk of bone fractures
Correct answer: A
Rationale: The correct answer is A: Increased risk of cardiovascular events. Testosterone therapy can lead to an increased risk of cardiovascular events like heart attacks and strokes, especially in older patients. Choice B, increased risk of liver dysfunction, is not a common adverse effect of testosterone therapy. Choice C, increased risk of prostate cancer, is a concern when using testosterone therapy in patients with existing prostate cancer, but not a general adverse effect. Choice D, increased risk of bone fractures, is not typically associated with testosterone therapy.
2. Which physiologic response is most likely to accompany activation of the parasympathetic nervous system?
- A. Increased heart rate
- B. Increased gastric motility
- C. Pupil dilation
- D. Sweating
Correct answer: B
Rationale: The correct answer is B: Increased gastric motility. The parasympathetic nervous system is known to promote rest and digest functions, which includes increasing gastric motility to aid in digestion. Choices A, C, and D are incorrect as they are more characteristic of the sympathetic nervous system. The sympathetic nervous system is responsible for the fight or flight response, leading to increased heart rate (Choice A), pupil dilation (Choice C), and sweating (Choice D) among other responses.
3. The nurse is caring for a client with an astrocytoma. The client asks, 'What do astrocytes do in the brain?' What is the nurse's best response?
- A. Astrocytes help to nourish and support neurons in the brain.
- B. Astrocytes are a type of neuron that transmit electrical signals.
- C. Astrocytes are involved in immune responses in the brain.
- D. Astrocytes help regulate blood flow in the brain.
Correct answer: A
Rationale: Astrocytes play a crucial role in supporting and nourishing neurons by providing metabolic support, maintaining the blood-brain barrier, and regulating the chemical environment of the brain. While astrocytes are essential for brain function, they are not neurons and do not transmit electrical signals (Choice B). Astrocytes are not primarily involved in immune responses in the brain (Choice C) or in regulating blood flow in the brain (Choice D), although they indirectly influence blood flow through their support functions.
4. Which of the following might result from severe diarrhea?
- A. Respiratory acidosis
- B. Metabolic alkalosis
- C. Respiratory alkalosis
- D. Metabolic acidosis
Correct answer: D
Rationale: The correct answer is D: Metabolic acidosis. Severe diarrhea can lead to metabolic acidosis because the loss of bicarbonate ions in the stool results in an overall decrease in the body's bicarbonate levels. Respiratory acidosis (choice A) is caused by retention of carbon dioxide, usually due to inadequate alveolar ventilation. Metabolic alkalosis (choice B) is characterized by elevated pH and bicarbonate levels, usually caused by conditions like vomiting. Respiratory alkalosis (choice C) is a condition of low blood carbon dioxide levels and high pH, often due to hyperventilation.
5. A family member expresses concern to a nurse about behavioral changes in an elderly aunt. Which would cause the nurse to suspect a cognitive impairment disorder?
- A. Decreased interest in activities that she once enjoyed
- B. Fear of being alone at night
- C. Increased complaints of physical ailments
- D. Problems with preparing a meal or balancing her checkbook
Correct answer: D
Rationale: The correct answer is D. Problems with tasks like meal preparation and balancing a checkbook can indicate cognitive impairment, as these activities involve cognitive functions such as memory, attention, and executive function. Choices A, B, and C are less indicative of cognitive impairment. Decreased interest in activities and increased complaints of physical ailments may be related to other factors like depression, while fear of being alone at night could be due to anxiety or other psychological issues.
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