Nursing Elites

1. Which of the following is a chronic condition where the heart muscle is weakened and unable to pump blood effectively, often leading to heart failure?

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

Correct answer: A

Rationale: Dilated cardiomyopathy is characterized by the heart muscle being weakened and unable to pump blood effectively, ultimately resulting in heart failure. Choice B, Hypertrophic cardiomyopathy, involves the heart muscle becoming abnormally thick, reducing the heart's efficiency. Choice C, Restrictive cardiomyopathy, refers to the heart becoming rigid and less able to fill with blood properly. Myocarditis, as in Choice D, is inflammation of the heart muscle usually caused by a viral infection and is different from the chronic weakening seen in dilated cardiomyopathy.

2. Which valve opens during ventricular systole and closes during ventricular diastole?

• A. Aortic valve
• B. Pulmonary valve
• C. Mitral valve
• D. Tricuspid valve

Correct answer: B

Rationale: The correct answer is B: Pulmonary valve. The pulmonary valve opens during ventricular systole to allow blood to flow from the right ventricle into the pulmonary artery. The aortic valve opens during ventricular systole to allow blood to flow from the left ventricle into the aorta. The mitral valve and tricuspid valve are atrioventricular valves that open during ventricular diastole to allow blood to flow from the atria into the ventricles.

3. Which order should the nurse question?

• A. The addition of a loop diuretic with digoxin.
• B. The addition of a beta blocker with digoxin.
• C. A digoxin dose of 0.125 mg per day.
• D. The addition of an ACE inhibitor with digoxin.

Correct answer: B

Rationale: The correct answer is B because adding a beta blocker to digoxin can potentiate the bradycardic effect of digoxin, leading to serious complications such as heart block. This combination requires caution as it can significantly slow down the heart rate. Choices A, C, and D are not the best options to question in this scenario. Loop diuretics are commonly used with digoxin, a digoxin dose of 0.125 mg per day is within the typical range, and ACE inhibitors are often prescribed alongside digoxin for managing heart conditions.

4. What is an infection that causes inflammation in the air sacs of one or both lungs, which may fill with fluid or pus?

• A. Pneumonia
• B. Tuberculosis
• C. Pleurisy
• D. Pulmonary edema

Correct answer: A

Rationale: The correct answer is A, Pneumonia. Pneumonia is an infection that inflames the air sacs in one or both lungs, which may fill with fluid or pus, causing symptoms like cough, fever, chills, and difficulty breathing. Tuberculosis (B) is a bacterial infection that primarily affects the lungs but is caused by a different bacterium. Pleurisy (C) is inflammation of the tissues that line the lungs and chest cavity, not the air sacs. Pulmonary edema (D) is a condition where fluid accumulates in the lungs' air sacs but is often due to heart problems rather than an infection.

5. What is a condition where the right side of the heart fails due to increased pressure in the pulmonary arteries, often caused by chronic lung disease?

• A. Cor pulmonale
• B. Heart failure
• C. Pulmonary embolism
• D. Myocarditis

Correct answer: A

Rationale: Cor pulmonale is the correct answer. It is a condition where the right side of the heart fails due to increased pressure in the pulmonary arteries, often caused by chronic lung disease such as COPD. Pulmonary embolism (choice C) is a blockage in one of the pulmonary arteries in your lungs. Myocarditis (choice D) is inflammation of the heart muscle. While heart failure (choice B) is a broad term that can involve the failure of either the right or left side of the heart.

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