ATI RN
ATI Pathophysiology Exam 1
1. In addition to matching ABO antigens, a blood transfusion must also be matched for:
- A. HLA type
- B. Rh antigen
- C. Immunoglobulins
- D. Platelet compatibility
Correct answer: B
Rationale: The correct answer is B: Rh antigen. In addition to ABO antigens, Rh antigen must also be matched for a blood transfusion. Rh antigen compatibility is crucial to prevent adverse reactions. Choice A, HLA type, is not directly related to blood transfusions but plays a role in organ transplantation. Choice C, Immunoglobulins, are not typically matched for blood transfusions. Choice D, Platelet compatibility, while important in specific cases, is not a standard requirement for all blood transfusions.
2. What is the best position for a patient experiencing shortness of breath?
- A. Supine position
- B. Semi-Fowler's position
- C. Trendelenburg position
- D. Prone position
Correct answer: B
Rationale: The best position for a patient experiencing shortness of breath is the Semi-Fowler's position. This position promotes lung expansion and improves oxygenation by allowing the chest to expand more fully. The Supine position (lying flat on the back) may worsen breathing difficulties by reducing lung capacity. The Trendelenburg position (feet elevated higher than the head) is not recommended for patients with shortness of breath as it can increase pressure on the diaphragm and compromise breathing. The Prone position (lying face down) is also not suitable for patients experiencing shortness of breath as it may further restrict breathing.
3. A client with vision loss is under the care of a nurse. Which of the following actions should the nurse AVOID?
- A. Keep objects in the client's room in the same place
- B. Ensure there is high-wattage lighting in the client's room
- C. Approach the client from the side
- D. Allow extra time for the client to perform tasks
Correct answer: Approach the client from the side
Rationale: Approaching a client with vision loss from the side can startle them and may lead to accidents or discomfort. It is important to approach them from the front so they are aware of your presence. Keeping objects in the same place aids in familiarity and reduces the risk of falls. High-wattage lighting enhances visibility for the client. Allowing extra time for tasks accommodates the client's potential slower pace and ensures they can perform tasks safely.
4. A nurse is planning care for a client who has a new prescription for total parenteral nutrition (TPN). Which of the following interventions should the nurse include?
- A. Weigh the client weekly to monitor for fluid retention.
- B. Monitor the client's blood glucose level every 6 hours.
- C. Change the TPN tubing every 72 hours.
- D. Flush the TPN line with sterile water before and after administration.
Correct answer: B
Rationale: The correct answer is B: Monitor the client's blood glucose level every 6 hours. When a client is on TPN, it is crucial to monitor their blood glucose levels frequently to prevent complications such as hyperglycemia or hypoglycemia. Weighing the client weekly to monitor for fluid retention (choice A) is important but not as critical as monitoring blood glucose levels. Changing the TPN tubing every 72 hours (choice C) is important for infection control but does not directly relate to the client's metabolic status. Flushing the TPN line with sterile water before and after administration (choice D) is not a standard practice and may introduce contaminants into the TPN solution.
5. A client has been prescribed Aspirin for prevention of cardiovascular disease. Which of the following findings indicates the medication is effective?
- A. The client has a decrease in troponin levels.
- B. The client has a regular heart rhythm.
- C. The client experiences a decrease in episodes of angina.
- D. The client's blood pressure remains stable.
Correct answer: C
Rationale: The correct answer is C. A decrease in episodes of angina indicates that Aspirin is effectively preventing the formation of clots that could lead to cardiovascular events. Angina is chest pain or discomfort caused by reduced blood flow to the heart muscle, usually due to coronary artery disease. Aspirin works by inhibiting platelet aggregation, thereby reducing the risk of clot formation in the arteries. Improvement in angina symptoms suggests that the medication is successfully preventing clot-related complications in the cardiovascular system. Monitoring and recognizing a decrease in angina episodes can be a valuable indicator of the medication's efficacy in preventing cardiovascular events. Choices A, B, and D are incorrect because a decrease in troponin levels, a regular heart rhythm, or stable blood pressure, while important parameters, do not directly reflect the effectiveness of Aspirin in preventing cardiovascular events through antiplatelet action.
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