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. 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 reviewing laboratory results and notes a patient's activated partial thromboplastin time (aPTT) level of 28 seconds. The nurse should notify the health care provider in anticipation of adjusting which medication?

• A. Aspirin
• B. Heparin
• C. Warfarin
• D. Erythropoietin

Correct answer: B

Rationale: The correct answer is B: Heparin. An activated partial thromboplastin time (aPTT) level of 28 seconds indicates a prolonged time, which is associated with heparin administration. Heparin is an anticoagulant medication that affects the intrinsic pathway of the coagulation cascade, leading to an increased aPTT. Aspirin (choice A) affects platelet aggregation and does not directly impact aPTT. Warfarin (choice C) affects the extrinsic pathway of the coagulation cascade and is monitored using the international normalized ratio (INR), not aPTT. Erythropoietin (choice D) is not related to coagulation parameters.

4. Which instruction will the nurse plan to include in discharge teaching for a patient admitted with a sickle cell crisis?

• A. Take a daily multivitamin with iron
• B. Limit fluids to 2 to 3 quarts per day
• C. Avoid exposure to crowds when possible
• D. Drink only two caffeinated beverages daily

Correct answer: C

Rationale: The correct answer is C: 'Avoid exposure to crowds when possible.' This instruction is crucial in discharge teaching for a patient admitted with a sickle cell crisis because exposure to crowds increases the risk of infection, which is the most common cause of sickle cell crisis. Choices A, B, and D are incorrect. Taking a daily multivitamin with iron (Choice A) may be beneficial for some individuals but is not specifically related to managing sickle cell crisis. Limiting fluids to 2 to 3 quarts per day (Choice B) is not typically recommended for patients with sickle cell crisis, as adequate hydration is important. Drinking only two caffeinated beverages daily (Choice D) is not a priority instruction in managing sickle cell crisis.

5. Which collaborative problem will the nurse include in a care plan for a patient admitted to the hospital with idiopathic aplastic anemia?

• A. Potential complication: seizures
• B. Potential complication: infection
• C. Potential complication: neurogenic shock
• D. Potential complication: pulmonary edema

Correct answer: B

Rationale: The correct answer is B: Potential complication: infection. Patients with idiopathic aplastic anemia have pancytopenia, which puts them at a high risk for infections due to decreased production of all blood cells (red blood cells, white blood cells, and platelets). Infection is a significant concern in these patients. Choices A, C, and D are incorrect because seizures, neurogenic shock, and pulmonary edema are not typically associated with idiopathic aplastic anemia. While seizures can occur in some conditions that affect the brain, neurogenic shock is related to spinal cord injury, and pulmonary edema is more commonly seen in conditions like heart failure.

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