ATI RN
ATI Pathophysiology Quizlet
1. What therapeutic effect is expected from tamsulosin (Flomax) in a male patient with benign prostatic hyperplasia (BPH)?
- A. Relaxation of the muscles in the prostate and bladder neck, leading to improved urinary flow.
- B. Increase in urine flow and relief of urinary obstruction.
- C. Reduction in prostate size and improvement in urinary symptoms.
- D. Improvement in erectile function.
Correct answer: A
Rationale: The correct answer is A: 'Relaxation of the muscles in the prostate and bladder neck, leading to improved urinary flow.' Tamsulosin is an alpha-blocker that specifically targets alpha-1 receptors in the prostate and bladder neck, causing relaxation of smooth muscles. This relaxation results in improved urinary flow and reduced symptoms of BPH. Choice B is incorrect because while tamsulosin does improve urinary flow, it does not directly increase urine flow. Choice C is incorrect because tamsulosin does not reduce prostate size. Choice D is incorrect as tamsulosin does not have a primary effect on erectile function.
2. What is the distinguishing feature of Hodgkin disease noted on histologic exam?
- A. Reed-Sternberg cells
- B. Red-stained cells
- C. Human Papillomavirus
- D. B-cells and T-cells
Correct answer: A
Rationale: The correct answer is A: Reed-Sternberg cells. Reed-Sternberg cells are large, abnormal B-cells that are characteristic of Hodgkin's lymphoma. These cells are identified on histologic examination of lymph node biopsies from patients with Hodgkin disease. Choice B, 'Red-stained cells,' is vague and does not describe a specific feature of Hodgkin disease. Choice C, 'Human Papillomavirus,' is incorrect as Hodgkin disease is not caused by HPV. Choice D, 'B-cells and T-cells,' is incorrect as Hodgkin disease is characterized by the presence of Reed-Sternberg cells, which are abnormal B-cells.
3. An oncology nurse is providing care for an adult patient who is currently immunocompromised. The nurse is aware of the physiology involved in hematopoiesis and immune function, including the salient role of cytokines. What is the primary role of cytokines in maintaining homeostasis?
- A. Cytokines perform phagocytosis in response to bacterial and protozoal infections.
- B. Cytokines perform a regulatory role in the development of diverse blood cells.
- C. Cytokines play a significant role in the formation of all blood cells.
- D. Cytokines are produced in response to the presence of antibodies.
Correct answer: B
Rationale: The primary role of cytokines in maintaining homeostasis is to perform a regulatory function in the development of diverse blood cells. Cytokines act as signaling molecules that regulate the immune response and hematopoiesis. Choice A is incorrect because cytokines do not perform phagocytosis; they regulate immune responses. Choice C is incorrect because while cytokines are involved in the formation of some blood cells, they are not considered the basic 'building blocks' of all blood cells. Choice D is incorrect because cytokines are not formed in response to antibodies, but rather play a role in the immune response to various stimuli.
4. A patient with a history of osteoporosis is prescribed alendronate (Fosamax). What instructions should the nurse provide to ensure the effectiveness of the medication?
- A. Take the medication with a full glass of water and remain upright for at least 30 minutes to prevent esophageal irritation and ensure proper absorption.
- B. Take the medication with milk to enhance calcium absorption.
- C. Take the medication at bedtime to ensure absorption during sleep.
- D. Take the medication with food to prevent nausea.
Correct answer: A
Rationale: The correct answer is A. Alendronate should be taken with a full glass of water and patients should remain upright for at least 30 minutes to prevent esophageal irritation and ensure proper absorption. Taking the medication with milk (choice B) is not recommended as it may interfere with the absorption of alendronate. Taking the medication at bedtime (choice C) is not necessary for optimal absorption. Taking the medication with food (choice D) is also not recommended as food can reduce the absorption of alendronate.
5. A patient being treated for tuberculosis is determined to be drug resistant. Which of the following medications will the patient be resistant to in the treatment of tuberculosis?
- A. Isoniazid (INH) and rifampin
- B. Carbamazepine (Tegretol) and phenytoin (Dilantin)
- C. Dextroamphetamine (Dexedrine) and doxapram (Dopram)
- D. Propranolol (Inderal) and sotalol (Betapace)
Correct answer: A
Rationale: In the treatment of tuberculosis, drug resistance commonly develops against medications like Isoniazid (INH) and rifampin. These two drugs are key components of the standard anti-tuberculosis treatment regimen. Choices B, C, and D are unrelated medications that are not used in the treatment of tuberculosis. Carbamazepine and phenytoin are anticonvulsants, dextroamphetamine is a stimulant, and propranolol and sotalol are used for cardiovascular conditions.
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