ATI RN
Pathophysiology Exam 1 Quizlet
1. A patient is receiving finasteride (Proscar) for the treatment of benign prostatic hyperplasia. Which of the following is an expected outcome of the medication?
- A. Decrease in the size of the prostate gland.
- B. Improved urinary flow and decreased symptoms of urinary retention.
- C. Increased production of prostate-specific antigen (PSA).
- D. Reduction in the number of nocturnal awakenings.
Correct answer: B
Rationale: The correct answer is B. Finasteride (Proscar) is used in the treatment of benign prostatic hyperplasia to improve urinary flow and decrease symptoms of urinary retention by reducing the size of the prostate gland. Choice A is incorrect because although finasteride may reduce the size of the prostate gland, the expected outcome relevant to the patient's symptoms is improved urinary flow rather than a specific change in gland size. Choice C is incorrect because finasteride actually decreases the production of prostate-specific antigen (PSA) due to its mechanism of action. Choice D is incorrect because although improved urinary flow may lead to a reduction in nocturnal awakenings, the main expected outcome of finasteride treatment is related to urinary symptoms.
2. Which of the following is a sign of hypoglycemia?
- A. Rapid, deep breathing
- B. Increased urination
- C. Weakness and confusion
- D. High blood pressure
Correct answer: C
Rationale: The correct answer is C: Weakness and confusion. Hypoglycemia is characterized by low blood sugar levels, leading to inadequate glucose supply to the brain, resulting in symptoms like weakness and confusion. Choices A, B, and D are incorrect. Rapid, deep breathing is not typically a sign of hypoglycemia but can be seen in other conditions like respiratory issues. Increased urination is more commonly associated with conditions like diabetes mellitus, while high blood pressure is not a typical sign of hypoglycemia.
3. 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.
4. A nursing student having trouble moving her head from side to side is likely experiencing a problem with which type of neurons?
- A. General visceral efferent neurons
- B. Preganglionic neurons
- C. Parasympathetic postganglionic neurons
- D. Pharyngeal efferent neurons
Correct answer: D
Rationale: The correct answer is D: Pharyngeal efferent neurons. Pharyngeal efferent neurons are responsible for controlling head movements, including side-to-side motions. General visceral efferent neurons (Choice A) are involved in innervating smooth muscles and glands in the body's internal organs. Preganglionic neurons (Choice B) are part of the autonomic nervous system and connect the central nervous system to the ganglia. Parasympathetic postganglionic neurons (Choice C) are the second neurons in the parasympathetic nervous system pathway, responsible for innervating target organs. In this case, the issue with moving the head from side to side indicates a problem with the pharyngeal efferent neurons.
5. A patient with systemic candidiasis has been prescribed flucytosine. The nurse should be aware of the need to administer this drug with which of the following?
- A. Vitamin D and calcium supplements
- B. Fluconazole (Diflucan)
- C. Amphotericin B
- D. Penicillin G
Correct answer: C
Rationale: The correct answer is C: Amphotericin B. When treating systemic candidiasis, Amphotericin B is the drug of choice, not flucytosine. Amphotericin B is an antifungal medication used to treat severe fungal infections like systemic candidiasis. Choices A, B, and D are incorrect because vitamin D and calcium supplements, fluconazole, and penicillin G are not the drugs of choice for treating systemic candidiasis.
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