ATI RN
WGU Pathophysiology Final Exam
1. Which of the following is the most appropriate diagnostic method for identifying lung cancer in its early stages?
- A. CT scan
- B. MRI
- C. X-ray
- D. Biopsy
Correct answer: D
Rationale: A biopsy is the most appropriate method for diagnosing lung cancer in its early stages. A biopsy involves taking a small tissue sample from the lung for examination under a microscope. This method provides a definitive diagnosis by identifying cancerous cells. CT scans, MRIs, and X-rays can help detect abnormalities in the lungs, but a biopsy is necessary to confirm the presence of lung cancer. CT scans offer detailed images of the lung's structure, MRIs use magnetic fields for imaging soft tissues, and X-rays provide a basic view of the lungs, but none of these imaging techniques can definitively confirm the presence of cancer without a biopsy.
2. 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.
3. An MRI scan of a 33-year-old female client with new-onset seizures has revealed a lesion on her frontal lobe. Which of the following signs and symptoms would most likely be a direct result of this lesion?
- A. Changes in sensation or movement in the client's limbs
- B. Fluctuations in blood pressure
- C. Changes in speech and reasoning
- D. Increased intracranial pressure
Correct answer: C
Rationale: The correct answer is C: Changes in speech and reasoning. The frontal lobe is responsible for higher cognitive functions, including speech and reasoning. A lesion in this area can lead to difficulties in speech production, language comprehension, and reasoning abilities. Choices A, B, and D are incorrect. Changes in sensation or movement in the client's limbs are more associated with lesions in the motor or sensory cortices of the brain, not the frontal lobe. Fluctuations in blood pressure are often related to autonomic nervous system dysfunction, which is controlled by other brain regions. Increased intracranial pressure is typically seen in conditions like brain tumors or head trauma, not directly related to a frontal lobe lesion.
4. Which of the following describes the damage to the brain that results in cerebral palsy?
- A. Reversible with cognitive therapy in infancy
- B. Transient and resolves in adulthood through physical therapy
- C. Manifests in adulthood after regular childhood activities
- D. Irreversible and occurs before, during, or after birth or infancy
Correct answer: D
Rationale: The correct answer is D. Cerebral palsy involves irreversible damage to the brain that occurs before, during, or shortly after birth, impacting movement and coordination. Choices A, B, and C are incorrect because cerebral palsy is not reversible with cognitive therapy or physical therapy, does not resolve in adulthood, and does not manifest in adulthood after regular childhood activities.
5. What should a nurse include in patient teaching for a patient prescribed medroxyprogesterone acetate (Provera) for endometriosis?
- A. Medroxyprogesterone should be taken at the same time each day to maintain consistent hormone levels and effectiveness in treating endometriosis.
- B. Medroxyprogesterone can be taken with food to reduce gastrointestinal upset.
- C. Medroxyprogesterone should be discontinued if side effects occur.
- D. Medroxyprogesterone should be taken once a week to maintain effectiveness.
Correct answer: A
Rationale: When teaching a patient prescribed medroxyprogesterone acetate (Provera) for endometriosis, the nurse should emphasize the importance of taking the medication at the same time each day. This helps maintain consistent hormone levels and ensures the effectiveness of the treatment. Option A is correct because it addresses this key point. Option B is incorrect because medroxyprogesterone should be taken consistently but not necessarily with food. Option C is incorrect because discontinuing the medication without consulting a healthcare provider is not advisable. Option D is incorrect as medroxyprogesterone is usually taken daily, not weekly, for the treatment of endometriosis.
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