ATI RN
WGU Pathophysiology Final Exam
1. When teaching a patient about the use of finasteride (Proscar) for benign prostatic hyperplasia (BPH), what should the nurse emphasize about the expected outcomes of this therapy?
- A. Expect improvement in symptoms within a few days.
- B. Improvement in symptoms may take several weeks or months.
- C. Expect immediate improvement in urinary flow.
- D. The medication will cure BPH after treatment is complete.
Correct answer: B
Rationale: The correct answer is B. The effects of finasteride in treating BPH may take several weeks or months to become noticeable as it works by shrinking the prostate gland over time. Therefore, patients should be informed that improvement in symptoms may not be immediate. Choice A is incorrect because improvement in symptoms is not expected within a few days. Choice C is incorrect as immediate improvement in urinary flow is not typical with finasteride. Choice D is incorrect because finasteride manages BPH symptoms but does not cure the condition.
2. A nurse is conducting an assessment on a client who presents with symptoms that are characteristic of amyotrophic lateral sclerosis (ALS). What assessment finding would be expected in this client?
- A. Reduced reflexes in all four limbs
- B. Decreased cognitive function
- C. Involuntary muscle contractions
- D. Hyperreflexia
Correct answer: D
Rationale: The correct answer is D: Hyperreflexia. In amyotrophic lateral sclerosis (ALS), hyperreflexia is a common assessment finding due to the degeneration of upper motor neurons. This results in an overactive reflex response to stimuli. Reduced reflexes in all four limbs (choice A) are not typically seen in ALS; instead, hyperreflexia is more common. Decreased cognitive function (choice B) is not a primary characteristic of ALS. Involuntary muscle contractions (choice C) are more indicative of conditions such as dystonia or myoclonus, not ALS.
3. A patient is prescribed levothyroxine (Synthroid) for hypothyroidism. What is a key point the nurse should include in the patient education?
- A. Take the medication on an empty stomach with a full glass of water to ensure proper absorption.
- B. Do not take this medication with calcium supplements.
- C. Avoid taking this medication with grapefruit juice.
- D. Take the medication with food to enhance absorption.
Correct answer: A
Rationale: The correct answer is A. Levothyroxine should be taken on an empty stomach with a full glass of water, typically 30 minutes to an hour before breakfast, to ensure proper absorption. Taking it with food, calcium supplements, or grapefruit juice can interfere with its absorption. Choice B is incorrect because taking levothyroxine with calcium supplements can reduce its effectiveness. Choice C is incorrect because grapefruit juice can also interfere with levothyroxine absorption. Choice D is incorrect because taking levothyroxine with food can decrease its absorption.
4. What is a common cause of a pulmonary embolism?
- A. An autoimmune disorder
- B. A venous blood clot from the lower extremity
- C. An increase in intracranial pressure
- D. Hypotension
Correct answer: B
Rationale: A pulmonary embolism is commonly caused by a blood clot that originates in the venous system of the lower extremity and travels to the lungs, blocking blood flow. This clot is known as a venous thromboembolism. An autoimmune disorder (Choice A) is not typically associated with pulmonary embolism. Intracranial pressure (Choice C) refers to pressure inside the skull and is unrelated to pulmonary embolism. Hypotension (Choice D) is low blood pressure and is not a common cause of pulmonary embolism.
5. Which type of lymphocyte recognizes and eliminates virus-infected cells and cancerous cells?
- A. Neutrophils
- B. Macrophages
- C. Natural killer cells
- D. Langerhans cells
Correct answer: C
Rationale: Natural killer cells are a type of lymphocyte that plays a crucial role in recognizing and eliminating virus-infected cells and cancerous cells. Neutrophils (Choice A) are a type of white blood cell involved in fighting infections, mainly through phagocytosis. Macrophages (Choice B) are another type of white blood cell that engulfs and digests cellular debris and pathogens. Langerhans cells (Choice D) are a type of dendritic cell found in the skin and mucosa, primarily involved in antigen presentation.
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