Nursing Elites

1. The nurse is administering a calcium channel blocker. What is the primary effect of this medication on the cardiovascular system?

• A. Decreases heart rate
• B. Increases heart rate
• C. Increases blood pressure
• D. Decreases blood pressure

Correct answer: D

Rationale: The correct answer is D: Decreases blood pressure. Calcium channel blockers primarily work by relaxing the blood vessels, leading to a decrease in blood pressure. Choice A, 'Decreases heart rate,' is incorrect because calcium channel blockers do not significantly affect heart rate. Choice B, 'Increases heart rate,' is incorrect as calcium channel blockers do not have a primary effect of increasing heart rate. Choice C, 'Increases blood pressure,' is incorrect as the primary effect of calcium channel blockers is to decrease blood pressure by vasodilation.

2. What is a chronic inflammatory disease that affects the small airways in the lungs, leading to episodes of wheezing, breathlessness, and coughing?

• A. Asthma
• B. COPD
• C. Bronchitis
• D. Lung cancer

Correct answer: A

Rationale: Asthma is the correct answer. It is a chronic inflammatory disease that affects the small airways in the lungs, leading to symptoms like wheezing, breathlessness, and coughing. Asthma is commonly triggered by allergens, exercise, respiratory infections, and other factors. Choice B, COPD (Chronic Obstructive Pulmonary Disease), is characterized by airflow limitation and is often caused by smoking. Choice C, Bronchitis, is an inflammation of the bronchial tubes and can be acute or chronic. Choice D, Lung cancer, is a disease characterized by uncontrolled cell growth in lung tissues and is commonly associated with smoking or environmental factors.

3. Which type of lung cancer is strongly associated with exposure to asbestos?

• A. Mesothelioma
• B. Adenocarcinoma
• C. Squamous cell carcinoma
• D. Small cell lung cancer

Correct answer: A

Rationale: The correct answer is Mesothelioma. This type of lung cancer is indeed strongly associated with exposure to asbestos, affecting the lining of the lungs or abdomen. Adenocarcinoma, Squamous cell carcinoma, and Small cell lung cancer are not primarily linked to asbestos exposure, making them incorrect choices for this question.

4. The client asks about side effects of taking digoxin. How does the nurse respond?

• A. Anorexia can be a side effect of digoxin.
• B. Tachycardia can be a side effect of digoxin.
• C. Constipation can be a side effect of digoxin.
• D. Urinary retention can be a side effect of digoxin.

Correct answer: A

Rationale: The correct answer is A: 'Anorexia can be a side effect of digoxin.' Anorexia, nausea, vomiting, and diarrhea are commonly known side effects of digoxin. Choice B, 'Tachycardia can be a side effect of digoxin,' is incorrect as digoxin is used to treat tachycardia, not cause it. Choice C, 'Constipation can be a side effect of digoxin,' is incorrect as constipation is not a typical side effect of digoxin. Choice D, 'Urinary retention can be a side effect of digoxin,' is also incorrect as urinary retention is not a common side effect associated with digoxin use.

5. Which heart chamber ejects blood into the systemic arterial circulation via the aorta?

• A. Right atrium
• B. Left atrium
• C. Right ventricle
• D. Left ventricle

Correct answer: D

Rationale: The correct answer is D, Left ventricle. The left ventricle pumps oxygenated blood into the systemic circulation via the aorta. This chamber receives oxygen-rich blood from the left atrium and contracts forcefully to propel blood into the aorta, distributing it to the body. The other options, right atrium, left atrium, and right ventricle, do not directly eject blood into the systemic arterial circulation via the aorta. The right atrium receives deoxygenated blood from the body, the left atrium receives oxygenated blood from the lungs, and the right ventricle pumps blood to the lungs for oxygenation.

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