1. A patient with a history of hypertension and smoking is admitted with a diagnosis of acute myocardial infarction (AMI). Which of the following lab results would be most indicative of AMI? A. Elevated white blood cell count B. Elevated troponin I and T levels C. Decreased red blood cell count D. Elevated blood urea nitrogen levels Answer: B. Elevated troponin I and T levels Rationale: Troponin I and T are cardiac markers that are highly specific for myocardial injury and are elevated in the blood within hours of an AMI. 2. A 67-year-old male with chronic atrial fibrillation is on anticoagulation therapy. What is the primary reason for this treatment? A. To prevent arterial plaque formation B. To reduce the risk of thromboembolic events C. To control heart rate D. To decrease blood pressure Answer: B. To reduce the risk of thromboembolic events Rationale: Patients with atrial fibrillation have an increased risk of forming clots in the atria due to stagnant blood flow, which can lead to thromboembolic events such as stroke. 3. A nursing student is reviewing a case of a patient with anemia. Which of the following is a common sign of anemia? A. Hypertension B. Jaundice C. Pallor D. Polycythemia Answer: C. Pallor Rationale: Pallor, or paleness of the skin, is a common sign of anemia due to the reduced hemoglobin and red blood cell count. 4. In assessing a patient with peripheral arterial disease (PAD), which symptom would you expect to find? A. Intermittent claudication B. Productive cough C. Wheezing