ATI RN
ATI Perfusion Quizlet
1. Which statement by a patient indicates good understanding of the nurse’s teaching about prevention of sickle cell crisis?
- A. Home oxygen therapy is frequently used to decrease sickling.
- B. There are no effective medications that can help prevent sickling.
- C. Routine continuous dosage narcotics are prescribed to prevent a crisis.
- D. Risk for a crisis is decreased by having an annual influenza vaccination.
Correct answer: D
Rationale: Because infection is the most common cause of a sickle cell crisis, influenza, Haemophilus influenzae, pneumococcal pneumonia, and hepatitis immunizations should be administered.
2. Which information shown in the table below about a patient who has just arrived in the emergency department is most urgent for the nurse to communicate to the healthcare provider?
- A. Heart rate
- B. Platelet count
- C. Abdominal pain
- D. White blood cell count
Correct answer: B
Rationale: The correct answer is B: Platelet count. The platelet count is severely decreased, indicating a risk for spontaneous bleeding, which is a critical condition requiring immediate attention. While heart rate, abdominal pain, and white blood cell count are important, a severely decreased platelet count poses a more imminent threat to the patient's health and requires urgent communication to the healthcare provider. The nurse should prioritize addressing this potentially life-threatening issue to ensure prompt intervention and management.
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. Which patient statement to the nurse indicates a need for additional instruction about taking oral ferrous sulfate?
- A. I will call my health care provider if my stools turn black.
- B. I will take a stool softener if I feel constipated occasionally.
- C. I should take the iron with orange juice about an hour before eating.
- D. I should increase my fluid and fiber intake while I am taking iron tablets.
Correct answer: A
Rationale: It is normal for the stools to appear black when a patient is taking iron, and the patient should not call the health care provider about this.
5. Which assessment finding should the nurse caring for a patient with thrombocytopenia communicate immediately to the healthcare provider?
- A. The platelet count is 52,000/µL
- B. The patient is difficult to arouse
- C. There are purpura on the oral mucosa
- D. There are large bruises on the patient's back
Correct answer: B
Rationale: The correct answer is B. Difficulty in arousing the patient may indicate a cerebral hemorrhage, which is life-threatening and requires immediate action. While a low platelet count (choice A) is concerning in thrombocytopenia, it does not require immediate communication unless accompanied by active bleeding or other critical symptoms. Purpura on the oral mucosa (choice C) and large bruises on the patient's back (choice D) are important findings in thrombocytopenia but do not indicate an immediate life-threatening situation like a possible cerebral hemorrhage.
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