ATI RN
ATI Nutrition Practice A
1. Why is atherosclerosis dangerous to arterial function?
- A. It diminishes central circulation
- B. It causes decreased blood pressure on artery walls
- C. It narrows the arterial lumen so a clot can easily block it
- D. It increases arterial elasticity
Correct answer: C
Rationale: Atherosclerosis is dangerous to arterial function because it narrows the arterial lumen, increasing the risk of a clot completely blocking the blood flow. This can lead to severe cardiovascular events such as heart attacks or strokes. Choice A is incorrect since atherosclerosis does not primarily diminish central circulation, but rather, it impedes local blood flow where the plaque is present. Choice B is also incorrect as atherosclerosis increases the pressure on artery walls due to the narrowed space for blood flow, not decrease it. Lastly, choice D is incorrect as atherosclerosis causes the arteries to lose their elasticity, not increase it.
2. Healthcare systems primarily have functional structures. Which of the following would be an example of this?
- A. Open communication exists between Physical Therapy and Nursing.
- B. Medicine has authority over nursing.
- C. Laboratory services have little authority.
- D. All nursing tasks fall under nursing service.
Correct answer: D
Rationale: The correct answer is D. In functional structures, employees are grouped in departments by specialty, with similar tasks being performed by the same group. This means that in a healthcare system with a functional structure, all nursing tasks would fall under the nursing service. Choices A, B, and C are incorrect because open communication between departments, one department having authority over another, or the level of authority of a particular department do not necessarily represent a functional structure.
3. A nurse is providing discharge teaching to a client following a cataract extraction. Which of the following instructions should the nurse include?
- A. Bend at the waist when picking up objects.
- B. Avoid lying on the operative side.
- C. Avoid lifting more than 10 lb.
- D. Apply ice to the affected eye.
Correct answer: C
Rationale: The correct answer is C: 'Avoid lifting more than 10 lb.' After a cataract extraction, the nurse should instruct the client to avoid lifting heavy objects to prevent increased intraocular pressure, which could lead to complications. Choices A, B, and D are incorrect. A - 'Bend at the waist when picking up objects' can increase intraocular pressure; B - 'Avoid lying on the operative side' is not a specific concern related to cataract extraction; D - 'Apply ice to the affected eye' is not a standard post-cataract extraction instruction.
4. The nurse is teaching a community class to people with Type 2 diabetes mellitus. Which explanation would explain the development of Type 2 diabetes?
- A. The islet cells in the pancreas stop producing insulin
- B. The client eats too many foods that are high in sugar
- C. The pituitary gland does not produce vasopressin
- D. The cells become resistant to the circulating insulin
Correct answer: D
Rationale: In Type 2 diabetes, the primary issue is insulin resistance, where cells do not respond effectively to insulin. Choice A is incorrect as in Type 1 diabetes the islet cells in the pancreas stop producing insulin. Choice B is incorrect as while excessive sugar intake can contribute to the development of Type 2 diabetes, it is not the primary cause. Choice C is incorrect as the pituitary gland's function is unrelated to the development of Type 2 diabetes.
5. A healthcare professional is teaching a client who has a new prescription for Clopidogrel. Which of the following laboratory values should the healthcare professional monitor to assess for potential adverse effects?
- A. White blood cell count
- B. Platelet count
- C. Hemoglobin
- D. Blood glucose
Correct answer: B
Rationale: Clopidogrel is an antiplatelet medication that works by preventing blood clots. Monitoring the patient's platelet count is essential because a decrease in platelet count can increase the risk of bleeding. By assessing the platelet count, the healthcare professional can detect any potential adverse effects related to the medication and take appropriate actions to prevent complications. White blood cell count, hemoglobin, and blood glucose levels are not directly affected by Clopidogrel, so they are not the primary values to monitor for potential adverse effects of this medication.