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MSN 570 Advanced Pathophysiology Final 2024
1. Which of the following are manifestations of Cushing syndrome?
- A. Truncal obesity with thin extremities.
- B. Enlargement of face, hands, and feet.
- C. Cachexia.
- D. Thick scalp hair.
Correct answer: A
Rationale: Truncal obesity with thin extremities is a classic manifestation of Cushing syndrome due to the redistribution of fat. Enlargement of face, hands, and feet is seen in conditions like acromegaly, not Cushing syndrome. Cachexia is a state of severe weight loss and muscle wasting, typically seen in conditions like cancer or advanced infections. Thick scalp hair is not typically associated with Cushing syndrome.
2. Not realizing that its surface was hot, a woman has quickly withdrawn her hand from the surface of a bowl that she was removing from a microwave. Which phenomena has facilitated the rapid movement of her hand in response to the painful stimulus?
- A. Crossed-extensor reflex
- B. Flexor reflex
- C. Withdrawal reflex
- D. Stretch reflex
Correct answer: C
Rationale: The withdrawal reflex is a protective response that allows a person to quickly remove their hand from a painful stimulus.
3. A 20-year-old college student has presented to her campus medical clinic for a scheduled Pap smear. The clinician who will interpret the smear will examine cell samples for evidence of:
- A. Changes in cell shape, size, and organization
- B. Presence of unexpected cell types
- C. Ischemic changes in cell sample
- D. Abnormally high numbers of cells
Correct answer: A
Rationale: The correct answer is changes in cell shape, size, and organization (Choice A). Pap smears are performed to detect potential precancerous or cancerous conditions by examining the cells for any abnormalities in their shape, size, or organization. This helps in identifying early signs of cervical cancer. Choices B, C, and D are incorrect because Pap smears primarily focus on detecting cellular changes associated with cancer, not unexpected cell types, ischemic changes, or abnormally high numbers of cells.
4. A patient is starting on a new oral contraceptive. What should the nurse emphasize about the timing of the medication?
- A. Take the medication at the same time each day to maintain stable hormone levels.
- B. Oral contraceptives should be taken in the morning to avoid nighttime side effects.
- C. Oral contraceptives can be taken at any time of day as long as the schedule is consistent.
- D. Oral contraceptives are effective immediately upon starting, regardless of timing.
Correct answer: A
Rationale: The correct answer is A. It is crucial for patients taking oral contraceptives to take the medication at the same time each day to maintain stable hormone levels and ensure their effectiveness in preventing pregnancy. Choice B is incorrect because there is no specific requirement to take oral contraceptives in the morning. Choice C is incorrect because consistency in timing is essential, but it should be at the same time each day. Choice D is incorrect because oral contraceptives may take some time to reach peak effectiveness, so it is important to emphasize the need for consistent timing.
5. When planning care for a cardiac patient, the nurse knows that in response to an increased workload, cardiac myocardial cells will:
- A. Increase in size
- B. Decrease in length
- C. Increase in excitability
- D. Increase in number
Correct answer: A
Rationale: The correct answer is A: Increase in size. Cardiac hypertrophy occurs when myocardial cells increase in size to compensate for an increased workload. This adaptation allows the heart to pump more effectively. Choice B, Decrease in length, is incorrect as cardiac cells do not decrease in length in response to increased workload. Choice C, Increase in excitability, is incorrect as increased workload does not lead to an increase in excitability of cardiac cells. Choice D, Increase in number, is incorrect as cardiac cells do not increase in number but rather increase in size to handle the increased workload.
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