Nursing Elites

1. 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.

2. 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.

3. The health care provider's progress note for a patient states that the complete blood count (CBC) shows a 'shift to the left.' Which assessment finding will the nurse expect?

• A. Cool extremities
• B. Pallor and weakness
• C. Elevated temperature
• D. Low oxygen saturation

Correct answer: C

Rationale: The correct answer is C: Elevated temperature. When a CBC shows a 'shift to the left,' it indicates elevated levels of immature polymorphonuclear neutrophils (bands), which is a sign of infection. In response to the infection, the body increases its temperature as part of the immune response. Choices A, B, and D are incorrect because cool extremities, pallor and weakness, and low oxygen saturation are not typically associated with a 'shift to the left' in a CBC; they are more indicative of other conditions or issues.

4. A patient who has immune thrombocytopenic purpura (ITP) has an order for a platelet transfusion. Which information indicates that the nurse should consult with the healthcare provider before obtaining and administering platelets?

• A. Platelet count is 42,000/µL
• B. Petechiae are present on the chest
• C. Blood pressure (BP) is 94/56 mm Hg
• D. Blood is oozing from the venipuncture site

Correct answer: A

Rationale: The correct answer is A. Platelet transfusions are not usually indicated until the platelet count is below 10,000 to 20,000/µL unless the patient is actively bleeding. In this scenario, the platelet count of 42,000/µL is not significantly low to warrant a platelet transfusion without active bleeding. Consulting with the healthcare provider is essential before giving the transfusion to ensure the appropriateness of the treatment. Choices B, C, and D are not directly related to the need for consulting before a platelet transfusion. Petechiae, low blood pressure, and oozing from the venipuncture site are common findings in patients with ITP and may not necessarily contraindicate a platelet transfusion at this platelet count.

5. 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.

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