ATI RN
ATI Perfusion Quizlet
1. The nurse assesses a patient who has numerous petechiae on both arms. Which question should the nurse ask the patient?
- A. Are you taking any oral contraceptives?
- B. Have you been prescribed antiseizure drugs?
- C. Do you take medication containing salicylates?
- D. How long have you been taking antihypertensive drugs?
Correct answer: C
Rationale: The correct answer is C: 'Do you take medication containing salicylates?' Petechiae are tiny, pinpoint, red or purple spots on the skin due to bleeding under the skin. Salicylates, which are found in medications like aspirin, interfere with platelet function and can lead to petechiae and ecchymoses. Asking about salicylate-containing medications is crucial in this situation. Choices A, B, and D are incorrect because they are not directly related to the development of petechiae.
2. A patient who had a total hip replacement had an intraoperative hemorrhage 14 hours ago. Which laboratory test result would the nurse expect?
- A. Hematocrit of 46%
- B. Hemoglobin of 13.8 g/dL
- C. Elevated reticulocyte count
- D. Decreased white blood cell (WBC) count
Correct answer: C
Rationale: The correct answer is C: Elevated reticulocyte count. Hemorrhage leads to the release of reticulocytes (immature red blood cells) from the bone marrow into circulation as a compensatory mechanism to replenish lost red blood cells. This response helps in restoring the oxygen-carrying capacity of the blood. Choices A and B, hematocrit of 46% and hemoglobin of 13.8 g/dL, may not reflect the immediate response to hemorrhage within 14 hours. Choice D, decreased white blood cell (WBC) count, is not directly related to the body's response to hemorrhage.
3. The nurse is caring for a patient post-coronary artery bypass graft procedure who is on a nitroglycerin intravenous drip. The nurse understands the importance of nitroglycerin with this procedure as:
- A. Decreasing myocardial oxygen supply.
- B. Increasing preload.
- C. Decreasing cardiac output.
- D. Decreasing afterload.
Correct answer: D
Rationale: Nitroglycerin is a vasodilator that works by decreasing afterload, which is the pressure the heart must work against to eject blood during systole. By reducing afterload, nitroglycerin helps the heart pump more effectively and decreases the workload on the heart. This results in improved cardiac output and decreased myocardial oxygen demand. Choices A, B, and C are incorrect because nitroglycerin does not decrease myocardial oxygen supply, increase preload, or decrease cardiac output.
4. The nurse is educating a patient who was discharged from the hospital after having cardiac surgery one week ago. The nurse recognizes the patient understands medication management when he/she states:
- A. I need to take my Lisinopril daily to reduce my risk of heart failure
- B. I only need to take the metoprolol when I feel my heart skip a beat
- C. I should carry my nitroglycerin pills in my pocket at all times
- D. I should only take the pain pills when my pain is really bad
Correct answer: A
Rationale: The correct answer is A. Lisinopril is commonly prescribed post-cardiac surgery to manage blood pressure and reduce the risk of heart failure. It is important for the patient to take Lisinopril daily as prescribed to achieve optimal outcomes. Choice B is incorrect as metoprolol is usually prescribed on a regular schedule to manage heart conditions, not just when symptoms occur. Choice C is incorrect because nitroglycerin should be kept in a cool, dry place, not in a pocket where it could be exposed to heat or moisture. Choice D is incorrect as pain medication should be taken as prescribed for adequate pain control, not just when pain is severe.
5. When providing care for a patient with sickle cell crisis, what is important for the nurse to do?
- A. Monitor the patient's intake of oral and IV fluids
- B. Evaluate the effectiveness of opioid analgesics
- C. Encourage the patient to ambulate as much as tolerated
- D. Educate the patient about high-protein, high-calorie foods
Correct answer: B
Rationale: The correct answer is to evaluate the effectiveness of opioid analgesics. In sickle cell crisis, pain is the most common symptom and is usually managed with large doses of continuous opioids. Monitoring fluid intake (Choice A) is important, but limiting fluids may not be necessary. Encouraging ambulation (Choice C) is generally good but may not be the priority during a sickle cell crisis. Educating the patient about nutrition (Choice D) is important for overall health but may not be the immediate focus during a crisis.
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