Nursing Elites

1. When administering enoxaparin (Lovenox) to a client, what is the most important lab value to monitor?

• A. Platelet count
• B. aPTT
• C. Hemoglobin
• D. INR

Correct answer: A

Rationale: The correct answer is A: Platelet count. When administering enoxaparin (Lovenox), it is crucial to monitor the platelet count because enoxaparin can cause a rare but serious side effect known as heparin-induced thrombocytopenia, which is a decrease in platelet count that can lead to increased risk of bleeding. Monitoring the platelet count allows for early detection of this potential complication. Choices B, C, and D are incorrect because aPTT, Hemoglobin, and INR are not the most important lab values to monitor specifically when administering enoxaparin.

2. Which procedure is used to restore a normal heart rhythm in patients with arrhythmias, typically using electrical shocks?

• A. Cardioversion
• B. Defibrillation
• C. Ablation
• D. Angioplasty

Correct answer: A

Rationale: The correct answer is A: Cardioversion. Cardioversion is the procedure used to restore a normal heart rhythm in patients with arrhythmias by delivering controlled electrical shocks to the heart. Choice B, Defibrillation, is incorrect because defibrillation is used to treat life-threatening arrhythmias by delivering an unsynchronized high-energy shock to the heart. Choice C, Ablation, is incorrect as it involves destroying abnormal tissue that causes arrhythmias, not necessarily restoring normal heart rhythm. Choice D, Angioplasty, is unrelated to heart rhythm restoration and is a procedure to open blocked or narrowed blood vessels.

3. The nurse is administering digoxin to a client. What is the most important parameter to check before administration?

• A. Heart rate
• B. Blood pressure
• C. Respiratory rate
• D. Oxygen saturation

Correct answer: A

Rationale: The correct answer is A: Heart rate. Before administering digoxin, it is crucial to check the client's heart rate because digoxin can cause bradycardia, making it essential to ensure the heart rate is within the appropriate range. Blood pressure, respiratory rate, and oxygen saturation are also important parameters to monitor in a clinical setting, but when administering digoxin, the focus should primarily be on the heart rate due to its potential effects on cardiac function.

4. What is a type of heart disease that involves the thickening or stiffening of the heart muscle, reducing its ability to pump blood?

• A. Hypertrophic cardiomyopathy
• B. Dilated cardiomyopathy
• C. Restrictive cardiomyopathy
• D. Arrhythmia

Correct answer: A

Rationale: Hypertrophic cardiomyopathy is a type of heart disease characterized by the thickening or stiffening of the heart muscle, leading to a reduced ability to pump blood. This condition is different from dilated cardiomyopathy (choice B), which involves the enlargement and weakening of the heart chambers. Restrictive cardiomyopathy (choice C) is characterized by the stiffening of the heart muscle, affecting its ability to fill with blood properly. Arrhythmia (choice D) refers to abnormal heart rhythms and is not specifically related to thickening or stiffening of the heart muscle, as seen in hypertrophic cardiomyopathy.

5. What test uses high-frequency sound waves to create images of the heart, allowing doctors to assess its structure and function?

• A. Echocardiogram
• B. MRI
• C. CT scan
• D. X-ray

Correct answer: A

Rationale: The correct answer is an echocardiogram. An echocardiogram utilizes high-frequency sound waves (ultrasound) to create images of the heart, enabling doctors to evaluate its structure, function, and detect any abnormalities. MRI (Choice B) uses magnetic fields and radio waves to produce detailed images of the body's structures. CT scan (Choice C) combines X-rays and computer technology to create cross-sectional images of the body. X-ray (Choice D) uses electromagnetic radiation to produce images of the internal structures of the body, but it is not the most suitable for assessing the heart's structure and function.

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